erasing history

Suppose I was experimenting with a few 
cvs features and later wanted to delete
any record of my checkins and updates etc.
Is there any reason why it would be a bad idea
to delete the offending lines from 
$CVSROOT/CVSROOT/history?

I was going to also delete any directories
I created in the repository and changes in
the sandboxDir/CVS/Entries file as well.

Is this everything? Is there a better way?


Thanks for any help.