This is a video from Vanity Fair of voice actor Tom Kenny (the voice of SpongeBob, the Ice King from Adventure Time, The Mayor Of Townsville from The Powerpuff Girls, and Heffer from Rocko's Modern Life) reviewing people doing impressions of his various characters. He's very nice and never really says a bad thing about anybody, even though you and I both know some of these people weren't very good. Just like my dad always says whenever I try to do the detachable thumb trick, "Don't quit your day job," which is extra sad because I was fired and just haven't told him yet.
Keep going for the video.
Thanks to DT, who agrees there's nothing more painful than watching a friend do a bad impression in front of people you just met and like.