I think I'm fairly good at fixing about anything I want to try, I just don't try some things I know I'm not capable of.  When I got grandkids and they had a broken toy or whatever I ended up telling them I can fix anything.  So, in general I think they believe it but once in a while I have to lay a toy or tool or whatever they've got,  back somewhere and hope they forget all about it so I don't have to admit I couldn't fix it. LOL