I usually wear a singlet, hot country and all that, look pretty good I think, not a fat slob, but i recon they profile me, younger looking singlet wearing farang, got to be guilty. I remember once when i wore a polo shirt in Big C Extra, no following around. I'm also a quick walker, maybe that looks suspicious.
Thaiwatsadu and Homepro no issue there, staff too lazy, i have to go find them