Twenty years ago the cell phone weighed over a kilo and looked like it could survive a nuclear bomb.
Over time its ancestors have shrunk to pocket size and people converse anywhere at anytime with anyone. The only time a Thai won't answer a call in a movie theater is during the national anthem.
But there are three other times you shouldn't pick up the phone.
On the toilet.
No one wants to hear a fart by fart account of your bowel movement.
>Unless it's to tell the woman's husband how good it is.
Several years ago I saw a motorcyclist laughing on the phone and he drove into a ditch.