No, it's nothing titillating--sorry.
I have this thing for those warning signs with the silhouettes of people on orange or yellow backgrounds. You know, like the ones on coke machines that show the little shadow man getting crushed to death because of tilting the machine to get his change, or the ones on electrical equipment that show the lightning bolt frying shadow man.
Well here's a really good one from Ireland
Warning: you may be able to walk on water here.