Bad Assumptions

My mom and I work near each other so we drive home together.

Mom: I can leave early today if you can.

me: Yeah I can leave early.

Mom: Ok, at the car at 3:35 SHARP

.............
Later on

*3 minutes later*
me: so you just ASSUME that I'm going to be late?

mom: and this is EXACTLY why first impressions matter?

me: what first impressions you've known me my whole life!

mom: see this is exactly why it matters what people think of you. This is not my mistake, this is an important life lesson.

me: *LOL*