I try to practice in off peak hours on public courts if I am going to be by myself.
Like week nights 4-8pm it is hard to get a court....but show up at 8:30 and you just about get the place to yourself.
Thing that bothers me the most are the tennis snobs...like the other day I was playing singles with a friend and the court next to us was 2 guys and 1 girl they had blue jeans on...one was wearing flip flops that had some walmart racquets and the were obviously new...or just doing it for fun dinking shots back and forth.(high school kids making good use of the nice weather)
then a group of 4 ladies show up...NIKE head to tow matching tennis bags and tell the girl that they need to get off court so they can play "real tennis"
My friend was closest and said "Ladies the wait time is 1 hour and they started 5 min after us and we have been here for 30min so you can wait for us for 30min...or 35 for them
Lady says "fine but I am calling the parks department"