Oh I know how you feel
I was making an adorable outfit for my daughter when my machine decided to act up and tore a piece out of it. I had spent weeks smocking it. Having small children at my feet I calmly unplugged the machine, picked it up, walked out the door, put it behind my SUV and backed over it a few (hundred) times....Hubby was not happy, I needed a new tire when I was done. That was not the first outfit it screwed up but it was its last. I bought a replacement machine in craigslist for $60.00 and have not missed that expensive piece of crap. Still can't talk hubby into buying me a new machine...lol but at least that one will never darken my doorway again.