Finally "lost it"?

My children have voted and they say that I have "finally lost it!" although my oldest thought that I had when I served chilled cucumber soup last year...

But you see, tonight on the way home from my daughter's art lesson I saw some guys cutting the lawn outside a petrol station. I have been wanting some grass for my compost heap...and well...I pulled over the car and asked them for a few bags.

I thought I was a clever girl when I drove home with my 4 bags of gorgeous grass, but my daughter was cringing in the front seat.

And when I got home, the others announced that I have officially and finally "lost it"! Not sure what "it" is...but they are convinced!

What do you say, have I : yes :-( or no :-) ?