From Jeanette Winterson’s Written on the Body:

My job was to go into the urinals wearing one of Inge’s stockings over my head.  That in itself might not have attracted much attention, men’s toilets are fairly liberal places, but then I had to warn the row of guys that they were in danger of having their balls blown off unless they left at once.  A typical occassion would be to find five of them, cocks in hand, staring at the brown-streaked porcelain as though it were the Holy Grail.  Why do men like doing everything together? I said (quoting Inge), ‘This urinal is a symbol of patriarchy and must be destroyed.’ Then (in my own voice), ‘My girlfriend has just wired up the Semtex, would you mind finishing off?’