So i was reading some therioes onlineeee and i came acros 2 good ones
1. Tsunade is Narutos Grrandma
2. Zabuza atempted to kill madara in the past, and because of that there were some kisame/zabuza problems.
I did the math, and for the first theory to be correct, dan and tsunade would of had to have the 4th when they were 17. This may seem kinda young, but we have to remember....these r ninjas. I mean Itachi not only had a lover when he was only 13,but he also killed her. (curse u konoha). Also dan and the 4th look very similar....and well...tsunade has blonde hair...nd is a senju, explainnig narutos epic amount of chakra. same blood type to.
4 the second theory well....its possible that zabuza is tobi?...kidding but...they have some kinda history.
Oh yeah...u can tune a piano....but u cant TUNAFISH! lololollololol (...we should have a joke thread)