I don't go to "do's".
I dislike the whole thing intensely and have no qualms in declining all invitations.
I constantly get asked why and never explain the real reasons, I gloss over with excuses about not being able to get out of work/babysitting problems etc but surely I'm not the only antisocial misery guts am I?
If you feel like this, what excuses do you give?
Also, what is the reason that you dislike "do's"?