Forcing git pull to update to remote

If you have some messy local thing, but you want to get rid of them and update with a remote branch, and you try to do git pull you would get

error: Your local changes to the following files would be overwritten by merge:

Now, what you want is to update your local branch to the unchanged HEAD branch, which would have no conflict with your remote branch.

$ git reset --hard HEAD
$ git pull

And done.