Having seen yet again this morning, somebody nearly ripping the handle off the door of the seafront loos, I have come up with an invention!!
Seemingly, they open mostly when its sunny, so how about a new solar lock! When its sunny, the doors unlock, when its cloudy, they lock up. Simple I thought, but what if you manage to get inside and then it clouds over......

.mmmmm Ha, ha, bit of fun! Have a nice weekend all.