Temporarily Block DM's

I don't know where to put this so here it is!
Okay so you know when you go and put on DND (do not disturb) and then come back from work/school to DM's and stuff? Why not be able to block all DM's for a specific amount of time (Kind like timed status!)

And then have a message/changeable message that says something like, 'Sorry but [username] is busy [doing something], please came back in about [approximated time when the timed dm block ends].'

This would be very useful, plus its not like you have to block your friends or something. All is right with the world!