Owen: where are you?
Owen: you were supposed to buy a few beers and come back 
Mia: sorry, i've met Ethan, we went to the bar
Mia: how long have you been waiting?
Owen: TWO HOURS, Mia!!
Mia: ups, sorry, i must have lost track of time
Mia: i'll be back in half an hour
Mia: are you mad??
Owen: take a guess
Mia left to buy some beer. She met Ethan, they went for a couple of drinks. Owen has been waiting for her for 2 hours. Mia will come back in 30 minutes.