Dad

Someone who takes there time to get milk

Dad:I'm going to get the milk brb

Child:ok
Child:it's been 9 years I bet he's going to get loads of milk
Mum:I don't want to tell you this but
Child: but what mum?
Mum:it's quite common for dads to say I'm going to get the milk,it's another way of saying "bye I'm never coming back"