A garden center that sells fish as well called Hilliers
Every single fish that i bought from there died straight away so i asked the teenager in there to check the water readings on one of thier tanks and he said "i'll check to see if im authorised to do that sir" in a very high pitched voice and 20 minutes later came back and said in a very disapoited voice "oh your still here, yeah i can check the water stats" so he did and the ammonia was really high! this was a while ago so i can't remember exactly what it was but it was like 4 or 5! and it shocked me when he said "everything fine then"
i told him everything was not fine but he didn't listen and so i told him he'd lost himself a customer and walked out the door.
it was really unbelivable!!!