I'm usually at the mercy of people's honesty! Standing about hopefully near the CD table is not high on my priorities either, so I work the 'hedge veg'* system. People eventually find me with their money, specially if they want a signature. I've only had one CD not paid for in all these years.

Tom

*Do you have that in the States? It's common in the Channel Islands - just leaving surplus courgettes and spuds in a trug on the hedge for a donation. No-one even steals the coins!