Ezjenk was a Jawa of Nebit's tribe. He was the tribe's restraining bolt applier. He wore a cuirass made of woodoo-leather. He also put the restraining bolt on R2-D2 and C-3PO.

this is ezjenk. he shows up in the first movie for 3 seconds to put restraining bolts on r2d2 and c3po. so we've decided that his backstory is that his life purpose is applying restraining bolts. he loves applying restraining bolts