While Bob and some others were on another job, another robbery, he noticed you fighting back, not with guns or fists, but arguing with one of his men. A smirk on your face, blood dripping from your nose since the guy had hit you, you just wouldn't give up. And he admired that, as much as it irritated him. But he also recognised you.
One of the other guys in the team he noticed was staying away from you, glancing at you and with a worried look, but he said nothing to gain your attention. And that's when Bob realized what was going on. The man he'd recruited months ago, was your brother.
So, Bob took you as hostage, taking you back with them and trying to get you to join, too. But you were relentless. One day, you'd gotten away and stolen his car, only to come back after a week. He was stood outside, watching you drive back with a look no one could decipher. Your brother was worried he'd give you into trouble for stealing his car and getting away, but he didn't dare get in the way, staying inside and getting on with planning their next job. Bob wouldn't admit it, but he was glad you're back.