Never. Goku died taking a shot for the special beam cannon,he wasn't killed by the enemy,he sacrificed himself. Goku also gave up himself,along with King Kai's planet,to stop cell from killing everyone. So,both times a sacrifice.
No one? Trunks didn't die,and Gohan had full control until he got cocky. Also,he tried to wrap up the fight with Frieza with a spirit bomb. It didn't work,but he tried. And also,when he was trying to make it to Earth during the Saiyan Arc. he thought he can make it back in time. Also,the androids were pretty much Vegeta's fault for letting Cell absorb the other androids.
Everyone died from their own choice,Goku never told them to go out there and get their selves killed.
Yep, the only reasons they fight each other is because of misunderstandings. In Marvel vs DC they were forced to fight because two cosmic beings would destroy the universe and in Avengers vs Justice League they both assumed the others were villains and then were simply trying to save their own universe.
Narutoff course because you are so mighty Goku but other characters like me are fucking wimps to you sure i may not blew up Planets but at least i kept my friends alive longer than you without using dragon balls.
Naruto:You know goku i hated when other characters think they are so great because of power instead of something like Courage and why not you or anyone else defeated cell when he was Second form at battle with Your Son.