When I say I don't have time

It literally means that I'm not feeling well or will probably not be feeling well when the scheduled event occurs.

It also probably means that I have other obligations like spouse or children to care for and make time available for.

I would LOVE to do the things that other people are doing and having fun with, like racing some randomizer or playing a party game, but I have to keep my priorities straight.

My priorities are family and health. I have to keep those priorities high, which means not doing some other things that sound like fun but aren't as high of a priority.

Sorry if this upsets you or offends you when I reject your offer, but this is why.