Accurate analysis from our esteemed author as always!
I once visited an office lav with awful hands-free robot soap dispensers. When approached, these small gold-plated protuberances would give an excited little whirr and then deliver a short, forceful squirt of white goo from the end, shooting it a surprising distance. Unfortunately these suggestive devices suffered from what I can only describe as an embarrassing problem - of always delivering their sticky ejecta far earlier than wanted, often onto an unwary visitor's clothes before a hand even got near them.
Worse, this was in a very straight-laced place where suggestive humour seemed not to exist - so the awful, embarrassing hilarity of the situation was completely lost on the staff there.