Fair enough. Look out for a bit of paper with "just keep it varied, and hey, let's have some obscure stuff" written on it. Actually, I may photocopy it at work first, then hand them out over the weekend.
Cos otherwise we'll get
"Wayne requests You're My Best Friend for Waynetta, who he met last night" x300
"Don't Stop Me Now for the <insert name of obscure English town> crowd" x250
"Anything by Roger for any teenage girl" x150
"TATDOOL for th eolder ladies who like a good cry" x100
The only way to really improve it is for someone to be strong and keep the variety coming. Personally I think you could get away with sticking an iPod on shuffle and coming back 3 hours later....