Why can't we have a baby elephant?

The rain returned to Juenau last night...  I'm not really complaining, we had a great stretch of weather, but MN (M1) is less than thrilled.  Here is a conversation that took place this morning on our way to the gym...

MN: I hate the rain.

me: Please don't say hate... I understand the rain is not always fun, but we need the rain.

MR: Yes, we need the rain for the flowers.

MN: Why can't we water the flowers and trees with a watering can?

me: We would never be able to finish the job...  Look at all the trees...

MN: I know, we can get an elephant to water all the trees and flowers!  Yeah!!  That's a great idea!!!

me:  Where would we keep the elephant?  We don't have a yard.

MN: We could get a baby elephant and it could stay in the secret room.

MR: I love baby elephants!