CHARACTER ANALYSIS
Okay, he isn't hero material. He dosen't run around putting right what once went wrong. But hey, he's darn funny! If it wasn't for him, DBZ would be less funny and way too serious. We should be thankful!
Okay, here are some examples of his act of bravery; he should be rewarded! First time: He sliced off Vegeta's tail before running for his life. Funny,  but he was able to weaken him and at the same time, save a weakened Goku! Yah! Second time: He sliced Vegeta's armour... otherwise Krillin and Gohan would be fried bait right now. I mean, come on, guys, he's being underestimated, here!
There is a down side, yes, a down side! I mean, he's self serving. Only thinks for himself. And gluttonous. Way hungry. Smart-mouthin' around. While the rest of the Z Warriors were fighting the Saiyans, he was eating! EATING!!!!! He is also self-serving. Rather than fight, he was running for cover! Take this scene for instance...he could've been squashed in the corner instead throughout the blast!
He's also a scaredy-cat. When Vegeta found out that Yajirobe sliced his poor armour, he was shaking in his boots and started yelling how Vegeta is so cool and stuff. No offence or anything but when it comes to danger, that's it. When his life is on the line, he dosen't fight like he was sorta trained to, but instead started talking stuff. Later, Krillin challenges his ground on that and he only replied; "Hey! It was stratedy!"
We believe he lives in Korwin's lookout, growing those famous senzu beans that revive ur health and strenght in no time. So, I think he can be pretty handy, even though he has a mouth. So people can't stand the guy...don't worry Yajirobe! Here, ur still the man!