i am guessing that you can achieve this by running bash as root, but with $HOME still set to /home/tarvid eg if you used $sudo bash
sam@oberon:~$ sudo -i root@oberon:~# echo $HOME /root root@oberon:~# logout sam@oberon:~$ sudo -s root@oberon:~# echo $HOME /home/sam root@oberon:~# exit sam@oberon:~$ sudo bash root@oberon:~# echo $HOME /home/sam
i am guessing that you can achieve this by running bash as root, but with $HOME still set to /home/tarvid
eg if you used $sudo bash
sam@oberon:~$ sudo -i
root@oberon:~# echo $HOME
/root
root@oberon:~# logout
sam@oberon:~$ sudo -s
root@oberon:~# echo $HOME
/home/sam
root@oberon:~# exit
sam@oberon:~$ sudo bash
root@oberon:~# echo $HOME
/home/sam