When You Call Someone in the Middle of the Night, Can You Make Sure You Get the Number Right? Great, Thanks

I awoke from a (fairly) sound sleep early this morning to my cell phone vibrating across the room as it was being charged. I always get so nervous when my phone rings in the middle of the night. It's never a good sign.

Me (groggily): Hello?
Asshole: Shavonne?
Me (groggily getting pissed): No.
Stupid asshole: : Oh! I'm sorry!
Me (awake, heart beating, PISSED): click

Is there a reason why people don't double check the number they dial in the middle of the night? Maybe it's because they should be asleep...