He was so pissed and it was beautiful

That is acceptable i think

How cruel are you?!

That's awesome. I hate spoilers, especially for Star Wars, but if someone deserves it, it's totally an appropriate punishment.

"You need to buy this shit NOW."
"*insert spoilers here*"
"NO! PLEASE THAT CAN'T BE TRUE"

*explosion noises

That means I can come be a jerk to you when you are doing your job. Just hang up the phone. No need to be a d*ck.

Telemarketers just follow instructions and read their lines, so... yeah, kind of a douche move.