Taxi drivers.
Or my current, walking a with a crutch after a foot operation, people who don't say excuse me, and just hover behind you breathing down your neck, yes it was a foot operation not an ear operation.
Another is when out with my cousin, who was severely injured in the armed forces, people who park in disabled parking spaces and not give a dang, worse is the places who provide the spaces not enforcing it.
Last but not least, people who move into council/corporation houses driving 2011/12 reg cars for example my new neighbour with a spanking new Jag.
Rant over.