Things that make you go Aargh, hmmm, hee hee

Not the best title I know, but I think you know the situations I mean - the ones where something happens to someone else, that you cannot prevent or fix and if you think about it for too long - it is kind of funny.
Like when you were travelling at speed on the back of a open topped truck with other tourists in Thailand, heading to an elephant sanctuary and someone's hat is caught by the wind and disappears under that truck following you.
Like on a day when there was a very small scatter of snow, someone has driven to work in their four wheel drive and then left their lights on in the car park building.
Like when you see a gust of wind suddenly whip loose leaves of paper out of folders left by kids outside assembly. The A4 pages tumble and fly in all directions, defying being reclaimed.
Like when you wake up in the morning to find a text checking to see if you had remembered to pick them up at 4 in the morning for work when you do not know them and aren't their bro. But you still kind of hope the intended text recipient remembered the early morning pick up.