It's been a long day. It just didn't occur to me.
5 seconds sound clip from the Planes, Trains & Automobiles (1987) movie soundboard.
You can hear this line at 00:20:59 in the Blu-ray version of the movie.
Quote context
[...]
- I'd switch pillows with you, but I'm allergic to sponge.
- I've got a bad allergy to it. I'd be sneezing all night with that thing.
- That's why I carry my own pillow. It's hypoallergenic.
- I had no idea those beer cans were gonna blow like that.
- You left them on a vibrating bed. What did you think was gonna happen?
- It's been a long day. It just didn't occur to me.
- It didn't occur to you, so I have to sleep in a puddle of beer.
[...]