"You were too loud." His hearing was pretty good, but not more so than any other humans. At least, he never noticed if it was. Being one of only 2 hybrids in existence on his world meant Trunks was kind of in the dark on a lot of things. And then when Gohan had died...

But he wouldn't think about then. They'd been avenged--all of them. Hopefully his world would have time to rebuild now.