"There's a Bono factory. The band, when they saw me getting busy, opened a factory. It's just there at the back of [Dublin suburb] Tallaght. And there's various different ones, and they're being used for different occasions."
- Bono on the fact that he seems to appear everywhere and with anyone, 2009
During the Achtung Baby recordings Bono often howled his frustration on mistakes, after a while the band imposed a new band rule: the hyped-up Bono is permanently forbidden to drink coffee.