I think the cat grass experiment is over on account of my cat being an idiot who, as long as cat grass is available, will do nothing but eat cat grass until he gets sick and throws it up.
And then eats more cat grass. And throws it up again.
And then eats more... and so on.
I accept that cat grass is gonna mean SOME messes to clean up, but eating the entire pot in one night and turning it into FIVE pukes isn't something we can keep doing :(