As children, in Outdoor School, we were taught that if you're lost in the woods with a wound, and maggots get into it, that's good, because they'll clean the tissue that would otherwise cause worse problems, so you should say "I love them there maggots."
More from here:
https://en.m.wikipedia.org/wiki/Maggot_therapy
>The first documented therapeutic use of maggots in the United States is credited to a second Confederate medical officer Dr. J.F. Zacharias, who reported during the American Civil War that:
"Maggots in a single day would clean a wound much better than any agents we had at our command ... I am sure I saved many lives by their use." He recorded a high survival rate in patients he treated with maggots.