My old rat Skittles used to be a terrible biter when she was younger (she recently passed away). She would bite me at least 6 times a day- for one month. Finally I started to hit her nose (not real hard!) when ever she bit me. She then stopped. When I got my other rat Nugget, she bit me too. Sweet Pea (nuggets baby) bit me too. Those two still bite me when they have a chance. Those two are real close to me for many reasons. They are so wild and nervous all the time, so I never get to bond with them. I only get to hold them about once every two weeks. They are so determined to get out and run away. One time they got loose outside in the middle of the night. I found Sweet Pea in the garden hose reel box. The next day my mom was looking out the window, and saw Nugget pop out of the chipmunk hole at the base of the tree. So... we had to go to Fleet Farm and buy a Havaheart traps, and set it up. About 5 hours later she came out. When that metal door came crashing down, she had a fit. Chewing on the bars and jumping all over the place. She did not want to be caught. I'm not real close to those two, but my other three are like the blood cells flowing through my veins- we are so close!! So yeah... you could say I have a few rattie problems. I have about 10-15 small scars all over my arms and hands Oh well!