Same iPod Different Account

I have 2 accounts on my computer, mines and my dads. I download everything on my account. On my dads account there isn't any music or videos on it. If I were to use my dads account and open up iTunes would it delete all of my music and videos on my iPod. I'm not allowed to put songs and videos on his account. And sometimes when he's on and gets off he tells me to leave his account and ONLY his account on since our computer is really really really slow. Can you please tell me if it would erase my fles on my iPod. If so can you tell me how to make not to.

Also another question. I downloaded a video from my friends house a day ago. It's not on my computer. If I were to open my iTunes with my iPod connected, would it delete that video??? If so can someone help me make it so it won't delete it.

Thanks

 

I don't believe being logged into an account matters with what gets put on your iPod. As long as the music libraries arn't different you shouldn't have any problems.

As far as the video is concerned, if your iPod is set to syncronize with your library when you connect it to your computer then yes, it will be lost. I don't have my iPod with me so I can't walk you through the exact steps but you have to change it under Prefrences.