Manners are a sensitive awareness of the feelings of others. If you have that awareness you have good manners no matter what fork you use.
Nothing is less important than which fork you use. Etiquette is the science...
There's no regret. You can't regret. I mean I've felt regret but I've also...
I actually bought a travel guitar and that guitar is really cool. You can actually fold the guitar and you can plug headphones into it but it's acoustic or semi-acoustic.
