<human>: This just happened. I went to the grocery store I used to work at to pick up some laundry detergent. I go to the checkout line, and my old boss is doing something at one of the registers. He's having a talk with one of the new employees about how he's nice if you do your job. That's when I opened my big mouth and attempted to make fun of myself by saying "Geez, no wonder you were never nice to me!" Fuck. He laughed about it, but I proceeded to kiss his ass in an attempt to fix any potential fuck up. I'm graduating this year and don't plan on having many ties here anymore, but unfortunately he's is one of my job references.

Can you give me the gist of the text in a nutshell?
<bot>: Made myself look like a jackass by attempting to be funny in front of a guy who holds my future in his hands.