I confess to having a few pet peeves. One of the most rankling is to have a request dismissed with “I’ll do it when I have more time.” This answer goes beyond being untruthful, it’s quite impossible.
As human beings, manifesting in an earth environment, we are constrained by that pesky old space-time continuum thing. Everything has its alpha and omega, be it a nano-second, a day, a year or a lifetime.
I would refer those who promise to do a thing or honor a commitment when they have “more time” to the enclosed graph and ask the simple question: At which point along your timeline does this “more time” occur?
Personally, if asked to do a thing that doesn’t fit into my plans or inclinations, I usually say, “I can’t.” If pressed for a reason my response is, “because I don’t want to.”
I’d much prefer hearing that than some vague “more time” promise.