Other thing about the slap idiots was how disrespectful they were to some of the stands who put on short artist demos.
I was watching Enrico Passini (builder of Wood & Tronics basses) and his main demonstrator Roberto Badoglio on the Vanderkley stand. They were playing some really nice, and very tasteful, stuff. Lots of chordal harmonies, and fast high end runs etc.
Some git sat down at the stand next to them, cranked the volume pathetically loud and a good go at drowning them out with, out of time, random slapping.
Enrico & Roberto took the piss a little and played bad slap right back at him but he carried on regardless. Eventually The two Italians were about to give up playing as they couldn't hear themselves and refused to turn up any louder. Then the 15 minutes klaxon sounded, Roberto played a nice little descending flourish & they stopped.
The git on the slapfest just carried on randomly whacking away. This wasn't a young guy either, I'd say he was well into his 50's. . .