In the US, almost all employment is at-will. There's no probationary period and any one can be let go at any time without notice for any reason (or no reason) e

In the US, almost all employment is at-will. There's no probationary period and any one can be let go at any time without notice for any reason (or no reason) except for a certain list of protected things (gender, race, marital status, and the like). Also, from the description, it seems like the conversation was way more than just "would you like to get a drink" and the guy already didn't back down.