Can an ordinary wooden chair be an instrument of torture? Of course, every brute investigation makes use of such furniture, whether as a place to tie the victim down, or as a weapon to attack them with. But, as Debbie Tucker Green’s new play so eloquently shows, the wooden chair can also be a more subtle and unexpected instrument of fraught emotion: at every meeting of a truth and reconciliation commission, the wooden chair is there in the hall, itself a dumb witness to the clash of old enemies.

Pauline Black, the lead singer of 2-Tone band The Selecter, was born in 1953 to an Anglo-Jewish mother and Nigerian father and was adopted as a baby by a white working-class couple from Essex, who refused to acknowledge she was black. However, by adolescence she was determined to define herself as society saw her and changed her surname to Black by deed poll when she was in her twenties.

At the start of September, the fourth Outlook Festival takes place in a 19th-century fort on the Croatian coast. Already this festival has become a vital point in the calendar for those involved with dubstep, grime and other UK underground scenes – not only a jolly in the sun (“dubstep's Ibiza”), but the one time in the year when everyone involved takes a break from international touring and comes together in the same place, a time to compare notes and take stock of the progress.

Jason Cook, Pleasance Dome ****

Jason Cook has masterly audience skills, and he needed them all the night I saw him. A middle-aged teacher (who really should know better), whose refreshment clearly led her to the delusion that she was the person people had paid to see, kept interrupting. Even the engaging and unfailingly polite Geordie comic's patience was wearing thin, but he constantly bested her and got on with the job of making us laugh.

Chris Lilley may not be a household name, but he is well known to comedy connoisseurs. The Australian's work, which he writes, produces and appears in - in several roles, male and female, adult and teenager - is exceptional, and is by turns funny and challenging, offensive and poignant. You may have seen We Can Be Heroes, about teenage identical twins Daniel and Nathan (played by Lilley), and Summer Heights High, set in a secondary school where the egregious fool Mr G taught drama to the self-obsessed Ja’mie (both played by Lilley); now comes Angry Boys, about young men in modern society.

Australia's cricketers used to call batsman Mark Waugh "Afghanistan", because (compared to his brother Steve) he was the Forgotten Waugh. It was a reference to the Soviet campaign against the Mujahideen during the 1980s. But few wars in recent-ish memory have been so deprived of the oxygen of damaging publicity as France's brutal struggle to hang on to colonial Algeria.

Let us begin with the nots. Fashionably weird is not enough. Edgy, whatever that means, is not enough. The repeated use of the word “vagina” is not enough and semi-improvised ensemble acting is not, in itself, quite enough. These were just some of the many not-thoughts which ran through my mind during the opening episode of the much-touted Campus. So what did picky me want? I wanted funny.

Following yesterday's season-opening Australian Grand Prix, McLaren's team boss Martin Whitmarsh was extremely unhappy that his driver Jenson Button had been given a drive-through penalty. Button had overtaken a Ferrari by cutting a corner, and should have yielded the position back, but McLaren requested guidance from the race controllers. Instead, all they got was a punishment from the stewards which retarded Button's progress by 23 seconds. "I feel a bit harshly treated," moaned Whitmarsh.

Kinoteka, the adventurous Polish film festival, opened last night with a gala screening at the Curzon Renoir of veteran director Jerzy Skolimowski’s Essential Killing, a film that has provoked some vicious responses. The Observer said it was “deeply silly”, one usually fairly reliable film blogger (Shades of Caruso) was “murderously angry at having my time wasted in such a careless manner. It has no allegorical dimension, no coherent metaphorical throughline, no momentum, no narrative point, no political message, no aesthetic merit… no energy, no wit or dread or suspense or cathartic aggression or whimsy or charm”.

Recently, some British playwrights have gone back to school, and found that it feels very much like a war zone. All the old tensions between teachers and pupils have escalated into open conflict: knives are drawn, punches thrown and arguments are settled by fights. Likewise, the language is disrespectful at best, and always expletive-heavy. Vivienne Franzmann’s new play, which visits London after opening in Manchester last month, frankly refers to a war zone in its title, and its action is scarcely less antagonistic.