Light bulb Posted on June 11, 2017June 11, 2009 by admin Q: How many U.S marines does it take to screw in a lightbulb? A: 50. One to screw in the lightbulb and the remaining 49 to guard him. Spread the love Related posts: I’ve been signed up with your service Viagra computer virus Oppurtunity cost An engineer, a mathmatician and an arts graduate