Why are some people so aggressive at the grocery store?

I was walking through a narrow isle at the grocery store at a moderately fast pace. This woman entered the isle after I passed her. The woman was still a little ways behind me , but then suddenly she started running towards me. The isle was very narrow but despite this she tried to run around me anyway. of course, she bumped into me and said "excuse me!" really loud and then ran off ahead of me.


just a few days ago the same thing happened but the woman was pushing a cart . she ran towards me from behind and hit me with the cart . I fell to the ground and she tried to go over me but since she couldn't she instead went around very quickly. I laid on the floor for a little bit trying to process what happened, then slowly got back up and left the store