When doing my IR in an FNTP II simulator the instructors acted as ATC and a favourite of their's was blah de blahddy blah squwak 262
8.
I backseated with a lot of other students and we all fell victim to the scam at some point.
When we looked back at the instuctors, they were pissing themselves watching the poor student twisting and twisting the knob on the transponder looking for the number 8.