Toilet / Urinal...clingfilm...
Exploading torch/bicycle lamp (better when Dynamo's were still about)...
Go to joke shop..get IR jammer £5..get people in all sorts of contortions trying to change TV channels...or just going nuts coz they cant and you can...
Super glue £1 coin to pavement outside cafe/ bar/shop...sit inside and watch...
Get a dumb friend...lick a 5p peice and press to their forehead...take it away, they will think its still there..tell them to keep head upright and slap the back of their head till it comes off..make up some reason why the longer it takes the better...
FREE FOOD...phone local BK MD's etc..tell person youve just got home with your dinner and that you found cheese in it when you expressly asked for no cheese as you are allergic to Dairy products..cant come back up as Mrs has gone to work and your looking after the kids..they will put your name in the book..go collect free meal next day or so....
Gaz