I yelled at the stupid front end manager today for being petty towards me

I was filling the shoot where we store food and stuff he got all uppity because i didn't do one tiny thing. I said look man the strips are in the strips spot if you can't figure out that's what is in that spot you are even dumber than you look. I guess i didn't make it clear enough as to what is where. Dude everything is labeled not my fault you can't read