Three Jobs Is Too Many

No I don't actually have three jobs, but that seems to be what people think. I had to go to Home Depot for work the other day. I had a cart and stuff in the cart and was shopping for light bulbs when a woman approached me. "I am looking for a chain for my snow blower. Is that something that is usually covered by warranty?" I was like "Um I couldn't tell you." She went on to say that it would be and she was going to buy the chain and blah blah blah. Blah blah bring it in to be fixed. "Can you show me where the chains are?" I said no and that I wouldn't know where to start. She pointed out how unhelpful I was and started walking away. "I don't even work here!" I thought it was odd for someone to just walk up and assume someone was working and then start making demands of them. Whatever. I had stuff to do and more errands to run. I finished my shift (aka shopping) at Home Depot and headed to my favorite retailer.... Wal-Mart. When I pulled into the lot I was annoyed at how busy the store was. I parked two towns over and walked through the unplowed lot. When I got in I saw that there weren't any carts. I turned around to go back out and find one in the lot when I saw a woman carrying a baby (very new looking baby) and a diaper bag. She saw that there were no carts and wasn't impressed. I went over to her and let her know that I was going out to get myself a cart and that I would get her one. I ran out and grabbed 2 carts. When I got back in she thanked me for my help. I pushed my cart toward the automatic doors when this old lady threw her purse and oxygen tank into my cart... "I was next!" I was next? Next for what? I replied. "I was next in line for a cart." I told the old lady that I didn't work there I was just helping that other girl because she needed help and that she was rude. I told her that if she asked me politely I would consider letting her have my cart and that I would get another. Then the hag says "I didn't know you didn't work here." I said "You are rude. You can have the cart, but don't expect Santa to be stopping at your house this year."

What the hell is wrong with people?