Moog left a comment yesterday about these stickers:
"I was in London on Saturday, and I saw 2 dead funny stickers..they were both like proper 'stop' stickers for smoking, etc, but one said 'no talking: penalty �200' and the other said 'no eye contact: penalty �200' my friend said it must be the gorillas...but what does that mean?"
I think she means Guerilla marketing. Someone's either trying to confuse the hell out of tourists or it's just emphasising all the wonderful official rules we have on the Tube.
Has anyone seen any others or got any other theories on them?