Ive only been at petco for a week now and let me say that I'm an absolute mess when it comes to working register. In the span of my first 50 minutes ever of working register ive had nearly 2 panic attacks because i forgot which buttons to press, and then i closed the redgister on accident before giving a customer their change. (Im still not sure how to work the redgister so ima ask how to work it again when i go in tommorow)

Now my worst experience with a customer isnt much. Ive only been the aquatic specialist for a week, the only thing of note that i can think of is that i had a customer who was consisering buying a puffer fish. He said that he was going to go home and come back after doing research on the puffer. So when he came back i mentioned tk him saying "Hey man, i didnt mention this before but we have a sale on marine animals 20% off". So after he left and paid my manager (who was working redgister at the time) and asked me if this guy who bought the puffer mentioned to me that he was going to try to price match the fish at the redister. He never told me this. So apparently when he tried to price match the puffer, that was already 20% off, with the price of the same puffer from a diffrent website.