Mechanical floor Puns

My boss told me I had to clean up the mechanical room in the building I work in but I couldn't sweep the floor because of asbestos. I replied with, "I'll clean it asbestos I can."

My dad was an auto mechanic with his own shop and often did work from inside a floor pit underneath the cars. One time my mom (who took care of the office) came over while he was working in the pit and remarked 'It's so dark down there, how can you see anything?' to which my dad replied, not missing a beat, 'I went to night school.'

I'm a mechanic, and our work van has some cheap after market headlights installed. One wasn't working and I found out its because they're poorly made. I commented "Look at this Chinese crap!" He turned around and says "No, this is a Chinese crap" and squats down on the floor.