A coworker happened to be checking out next to me. He looked over at what I had and said "You know, you should have gone to the ace hardware up the street. Now you are on camera buying all that stuff." We laughed.
Then the cashier asked the reflex "did you find everything you needed?" It was all I could do to not answer "well, I also needed some lime, but the garden center doesnt sell it". She was already looking at me funny.
(I was sealing up a room to make the AC more efficient)