[Well, he did help him put his house out. Firo is merely defending his honor and pride; honestly he's probably not that much of a punk, as much as Vegeta would like to address him as thus, which he'll still probably do. He also gets that a lot of beings just aren't acquainted with the Saiyan race, especially here. Just a stupid kid throwing a punch at someone he really doesn't understand.
These are the thoughts running through his head while he decides exactly how hard he's going to hit Firo.]
Why don't you tell me? [Vegeta's hand flies out to attempt to grab him by the shoulder as he takes his knee to try to connect it solidly with Firo's stomach, hard enough that it'll knock the wind out of him and possibly send him flying back a few feet. No broken bones or cracked ribs or anything like that.]
sob i'm so sorry
These are the thoughts running through his head while he decides exactly how hard he's going to hit Firo.]
Why don't you tell me? [Vegeta's hand flies out to attempt to grab him by the shoulder as he takes his knee to try to connect it solidly with Firo's stomach, hard enough that it'll knock the wind out of him and possibly send him flying back a few feet. No broken bones or cracked ribs or anything like that.]