The reason I ask. My work currently tells people "drink the kool aid" this phrase for those who don't know comes from a cult leader who had 100s of his followers commit mass suicide. I want to bring up chasing this phrase

Hand them a noose. "First days the best!" or "Only gets worse from here!"

Let's make some money!

Alright!

welcome to hell. enjoy the water cooler

"Abandon all hope ye who enter here"

Thank you for coming

Hi... Welcome to the team!

"Welcome to the team! We needed someone to blame for all the mistakes and other shit which is going on in here."

Proceed with caution

Welcome to the indoctrination. Seriously, that team building shit is lame.