Here's what I did. I was in Men's Warehouse a couple years ago. I walked in, it was a few customers in there, about 4-5. I was in the store for a half hour, walked by plenty of sales associates and they wouldn't even speak to me. It got to the point where I was intentionally walking past sales people and looking at/grabbing clothes just to see if they would just acknowledge me. I had a couple pairs of pants in my hand that I had planned on buying, I took them to the register, the guy at the register spoke and I said "you're the first person to speak to me and I've been in here for 30 minutes" and put the clothes on the counter and left.