Ya they do.. I usually don't get any though since I clean them very good every year if i do its minimal. I don't know how some people don't clean them.
Lol I never worked grocery but did work night shift.. I'm on days now and work around here.. I left my job in Westfield about 6 months ago. It was a tough drive working 12 hours then 3 hours of driving a day was a bit much.