I know what you mean about B&Q, I can't abide them!
I find some staff - if you can actually find them - are ''off'', like the customers are a pest.
One bloke walking around not doing anything in particular, trying ... and failing ... to look official and macho, I tried to ask him to get someone on the tills so I could pay, as there were none and he was the only staff I could see. Other customers were also at the tills waiting for someone to come on. I was very polite and said ''excuse me, please'' but he was totally oblivious to me. I again said ''excuse me, please'' as I had to follow him as he carried on walking, and he still just totally ignored me, so I dumped my stuff on the floor and walked out!
But I bet if I walked out with the goodies without paying, there would have been thousands of staff on me!