Town to install public toilets with anti-sex systems

Porthcawl in Wales will install public toilets with systems to prevent people from having sex inside including an alarm, doors that spring open, and a water sprayer. It seems the possibility of false alarms makes this a real, er, shitty idea. From CNN:

Movement sensors inside the toilets will respond to "violent" activity, while weight sensors will be installed to detect the entrance of more than one person, triggering the deterrent measures. The toilets have also been designed to prevent rough sleepers taking shelter inside: If a user remains in the toilet for too long, a warning message will play, while the lights and heating will switch off.