I am in no way defending your Petsmart - but not all locations are created equally.

The one that I frequent, the staff know my name when I walk in the door. They often tug me over to the reptile section to sex the ball pythons (never more than 2), check out a new king, answer questions they've been asked, but not known the answer to, and even paged me when they knew I was shopping in the store when a customer was in the store who they'd told about me (they give out my number to reptile customers).

When they first started carrying ball pythons a group of employees gathered around while they asked me about the care of ball pythons and why they may not eat for them, and good advice to give to customers, etc.

There's a second one I've been to, and the gal that runs the reptile department has snakes of her own and LOVES it when I come in there so she can talk snakes, and plans to buy a ball python from me this season.

So, there are stores where the staff "gets it" and recognizes their limitations.