Paranoia lads. I mean think about it. How many times per day do you see a person on a mobile phone? Do you think they are all calling an escort for directions. How many times do you see residents, workmen, delivery men go in and out of apartment blocks. Hundreds I suggest. It's in the mind. Now if your gonna get paranoid, start sweating, hopping from one foot to the other, somebody mind think your a raving nut case but the chances of them thinking your going to visit an escort are IMO remote.