You do what you can, but sometimes things just don't work out.
It's a very gusty, windy day here. I opened the front door to let Kenai outside and a big cricket bug blew in. He was having major failure to thrive and was struggling to right himself. I said, "oh, shit, now I have to save you," and went and got the glass and the piece of paper necessary to do so. I scooped him up, trying not to damage him further, went out and closed the door behind me so he wouldn't just blow back in, and lifted the glass off. The piece of paper started to blow away down the front stairs, Kenai chased it, being the golden retriever that he is -- and stepped squarely on the bug, killing it.
I did what I could. This one is on Kenai's karmic debt.