Well, I did it once ... But I'm resolved to not make that mistake again.
I had a crappy, unsuitable, "flipline" but the numerous uncliping it over limbs and even small suckers coming out of the main trunk gave me reason to buy a hand saw to carry with me on lifeline positioning climbs and for use in pruning.
I was happy to hear the votes for Silky saws as I just bought this:
Aerial