Have you ever cried at work?

I'm almost ashamed to say but I at age 34 cried at work today because I was verbally abused hard by a customer all because we quit carrying what he wanted. I offered something similar but nope he decided to just unload on me calling me worthless and a piece of sh*t and all sorts of choice names. There's been trouble with this particular guy before running scams for returns and whatnot in the past so I recognized his face but I've never really had to deal with him myself until today and man I'm not going to lie I almost walked out. There were other customers around but not a single person did anything. I don't expect anyone to defend me but I hoped at least one person would tell him to shut up. I've been dealing with a ton of crap lately as is so I really didn't need that. I did not wake up this morning to come to work to be treated like an actual punching bag.