VIDEO: Former NASA engineer, BYU grad, and YouTuber Mark Rober steps in and gives away Jimmy Kimmel’s money

Former NASA engineer, BYU grad, and YouTuber Mark Rober steps in as late-night guest host for Jimmy Kimmel, creating some ridiculous situations on Hollywood Boulevard to see if anybody will stop and do the right thing. Then Rober gives three Good Samaritans an opportunity to blow stuff up for a chance to win some of Jimmy’s money.