Thailand can get deluged with 2 feet of rain water in only 1 hour during this time of the season.
Imagine being in a bar in Pattaya, having a drink and watching the world go by and next thing you know, major flooding in the street?
Best to have a few more drinks as the rain is not going away any time soon!
Sooner or later, you will have to roll up your pants and walk through this mess to get home.
It is something you get use to when living in Thailand.