wrong number

Today in the morning I have been woken by a call. I hate, when I'm awake in the morning. All the day turns out crumpled.

Therefore every evening I switch off my phone, but sometimes I forget to do that.

In general, how people can call late in the evening or early in the morning? Don't they really get in the same situations?

"Probably I've got the wrong number..."

"You are right! The wrong number and the wrong time!!"