At our second Passover Seder, I arrived at the house to find my hosts on the front porch feverishly making cell phones calls. Apparently, they had found a cardinal with a broken wing, and had called animal control to see if they could help.
Since I'm not a veterinarian or anything, we went inside and soon the Seder began. At some point the animal control person rang the bell and our host ran outside and showed them where the bird was. We finished the Seder and someone commented that we had forgotten to open the door for Elijah the Prophet! (here's what that means, BTW).
Turns out we were covered. When we spoke to the person who had called animal control, who wasn't Jewish, she mentioned casually that the name of the responder was, no lie, Elijah!
Case closed. Rack those mitzvahs!