There were africanized bees where I was in San Diego.
First swarm there was literally over a million bees on our porch, and they were attacking people across the street at the mailbox.
Second swarm was same, but a lot less
Third swarm they were really calm and acted like ordinary bees
However, the reason I am posting. I was walking in the valley one day, and literally one angry bee (just one angry one) chased me for 15 minutes. It was going in my hair and very aggressively attacking, that one bee and I thought it was a whole swarm or multiple of them lol. I don't even know what I did to it, but it sure got angry. This really steep trail going up the valley (it usually took me and my parents a good 45-50 minutes to get to the top)...well I ran up that hill to get away from that damn bee in less than 5 minutes rofl. So a trail that on average took 50 minutes to get to the top cause of how steep it was, took me 5 minutes...and at one point I was literally rolling on the ground trying to get away from that super angry bee rofl.
After that, for the rest of the time I was in San Diego (for a year or so after that encounter), every bee I encountered would always get really aggressive to me for no reason and that never happened before that angry africanized bee attacked me lol. But now that isn't an issue, I can be around a bunch of bees and they aren't like that anymore.