mothership core tricks

I'm sure someone has already thought of this before, but it just came to me, does anyone think it would be a decent way to harrass just using the mothership core's time warp ability on the opponents mineral line? it wouldnt destroy workers, but they would slow down and your opponent would lose mining time that way. let me know what you guys think and if you have any other cool mothership core tricks or ideas feel free to post them here and we can all discuss them :)