Ever felt up by a same sex stranger totally by surprise in a public place like a big store?

This is a coincidence but it has happened me twice in the last year.
The first time I was on a tram after a football game. It was so rammed it was almost impossible to breath. But as the doors closed I felt a hand fondling my arse and clearly focussing on my ass crack. I had no idea who it was until the guy beside be, whose mouth was inches from my ear, said "It's me and you can drop your hand if you like, I won't mind.". Yes, I dropped my hand and he was definitely happy that I did....lol

The second time was going through airport security. I tripped the security machine so was called over for a manual search. So, arms outstretched and legs apart this guy gave me the pat down.....back of the hand over "sensitive" areas......and I started to get a hard on. He noticed this and said I would have to go to a private room to finish the search. Latex gloves off he conducted a "thorough search" and sent me on my way saying he didn't want me to miss my flight.....