I can’t tell you how many times someone poured a bucket of freezing cold ice-water down my back, then apologized for it!
Everyone is your friend during Songkran. I frequently just hopped up on the back of a truck and joined a group of strangers who happily welcomed me onto their mobile splash assault vehicle.
Kids randomly pop out of barrels on the back of trucks shooting you in the face, others run around in full costumes or halloween masks.
Songkran is a complete shock to the senses.