Grease guns are the bane of my existence. If they're not airlocked, then they're spooging out mounds of grease in my toolbox, and if they're not spooging out mountains of black moly grease in my toolbox, then they're doing a spring-loaded "money shot" of a pound of black grease onto my workbench when I try to refill or un-f$ck them. If I had a nickel for every HOUR I've spent fighting with grease guns ... or snow-shoveling mountains of grease out of my toolbox or off of my workbench into the trash can ... over the course of my life, I would be richer than Bill Gates.
After I got a backhoe, and needed to grease eleventy-bajillion zerk fittings on the hoe, I got the bright idea to buy grease in 5-gallon pails ("I'm saving MUNNY!") but unfortunately, most of that grease ends up in my toolbox, on the workbench, on my clothes, in my hair, on the seat of the truck, all over the washing machine, packed all up in my lug-soled boots (and then on the carpet)...I could go on.
Don't get me started. Grease guns are the spawn of SATAN.