Review Inappropriate behavior

1st experience:rider called me on arrival, I asked "who's this". He angrily replied "FOOD PANDA!!" 2nd exp. : Rider scolds me for waiting 30 minutes because he refused to contact my Globe # or ask the condo guards to contact me. He claims he contacted me thru the FP in-app message feature which it doesn't have. I said it's his fault not mine. He replied rudely, we fought for minutes then threatened to call his brother to beat me up. 3rd exp.: riders caterwauled to vex me while I fed stray cats. When I left, they barked at and tried to scare the cats while eating. I was forced to confront them and instead of apologizing they rudely retorted as if looking for trouble. FP should require riders to wear IDs so costumers can report to the cops.