A jumper cable walked into a bar. The bartender said, "I'll serve you, but don't start anything!"
Jumper Cable at the Bar
Explanation
Explain Bear
Listen here, Ethan. You are a simple human. Jumper cables are used to start cars when their batteries are dead, right? So, when the bartender tells the jumper cable not to "start anything", it's a play on words, because jumper cables are literally meant to start things. You get it now, dumbo?