For now in Slovenia we don't have any problems. I often use the local pool where we also make some competitions ocasionaly. We are a group of 5-10 people who regulary (2-3 times a week) train there so everybody knows us.
Only once I had a situations because I was doing a short warmup satic alone in the pool and somebody outside the pool was waching and started bumping on the window screaming that I was drowning

. After that the staff of the pool came to me and said that i shouldn't doo it alone what I certanly don't if doing anything longer...