Uptown top pranking

George and Andy were delighted with their bottle prank: take one empty sauce bottle, put a length of string inside it, point at your victim and then squeeze.  The idea is that the string shoots out, looking like a stream of sauce. 

It worked pretty well. Certainly better than their earlier attempt when they'd painted the inside of an HP bottle to make it look like it was full.  It probably would have worked a lot better if they'd allowed the paint to dry first.

It would certainly have been a lot less messy.