A conversation I had earlier

Coworker: Are you going to [redacted]'s party tonight?
Me: I don't know what that is, so my guess is no.
Coworker: Oh it's just a little celebration for her birthday at [a bar]. You should come! It will be fun! Do you have anything else to do?
Me: [after a long pause] No.
Coworker: But...
Me: Well, I got these big packages delivered to the office and I have to carry all the stuff home. Plus I kind of had plans to make French toast and watch a documentary about Mennonites on Netflix Instant.
Coworker: Oh.
Me: I'm really looking forward to it, so I think I'm gonna have to say no.
Coworker: Okay. Have fun.