(you do you, no need to send me a five page essay on why you like these things, I just don't want to write about these ships)
human/animal ships
shotacon/lolicon ships
anything involving characters that are younger than teens. Unless you're okay with age ups, because I will age them up. Hayato? Bam! He's 16 and is following some guy named Sawada Tsuna around. Shizuka Joestar? Probably hanging out with Jolyne who knows.