I used nursing skills to inject ink into printer cartridges today.

Make sure you take caution when ordering printer supplies online. I thought I was getting new cartridges. I didn't realize that "Refill Kit for Canon Printers" means "We give you ink in terrifying syringes, and you have to take the cartridge apart and remove a tiny plastic ball, almost skewering yourself with the provided gimlet, and then probably get ink on your fingers and table."