I'm at a difficult age

Wandering around a DIY store today without my specs and needing advice I spotted a luminous sweatshirt with a logo on the left breast area - not the sort of thing I imagined the young man in it would wear voluntarily - I  started asking him about paint

I'm sorry I don't work here  

Close enough now to see that the logo was from the zoo - I backed off apologetically

I'm so sorry, I could only see that you do work somewhere