Skinny white security guard with big black SUV = bad attitude

The guard (I use this term loosely as he was just a skinny white guy with jeans and a dirty jersey) had parked his huge M Class "breeker" vehicle on the pavement which blocked the entire walk way - so much so I had to walk in the road. I commented to him about roads for cars, sidewalks for people and he became so aggressive. He told me to shut the F... up and then threatened me. This little man obviously has an anger issue which is dangerous for all of us - give someone like this a gun and a big vehicle and who knows what will happen...... This is why he is a security guard and I'm a successful hotelier.