AWESOME to help your neighbors!! Lending a hand is the best way. I'm sure they appreciated the grass-eating lawnmowers' work!
We had a goat many years ago... he was abandoned and just showed up at our door one day. We had two dogs at the time also and the goat (we named Oliver) thought he was a dog too. I'd call for the dogs to come eat and Oliver would run right alongside them... we even bought him a collar and little bell to wear. I miss that goat