here's jeanne mos. >> reporter: when president trump tweets, it can leave his critics burning, so a robot builder decided to burn them. each and every trump tweet goes up in smoke, with a message to @realdonaldtrump, i burned your tweet. how often do you empty the ashtray? >> about once a day. >> reporter: daniel says he's giving trump's tweets the attention they deserve. he found himself annoyed by them, to him the burning is cathartic. he specializes in making goldburg like gizmos that solve problems in difficult ways. like this oreo separating machine, that separates the cream from the cookie, or the bottle cap remove activated by opening the refrigerator door,