When I no longer have grass, I search everywhere in the house, and I scratch my grinder.
You should be confessing that you still call it 'grass'.
p.s.- Tsk tsk on the tobacco. I hope you tell the people you're smoking with about the tobacco before you share it. Oh, tsk, tsk.
p.p.s.- it's really weird that 'grass' makes you cough but tobacco doesn't. Sure you know the difference? jk!