one day-what if one day-what if i said 'i wish i was a tree' and then suddenly i was a tree
then could i wish myself back?  no, trees can't wish.
what if i wished i was a wishing tree--a tree that could wish? what if i wished i was a toilet bowl and then i was one and the wind changed and i stayed that way?
or what if i wished i was a toilet bowl and suddenly i was a tree? would i be able to say
'hey! i wanted to be a toilet bowl not a tree?' no, i wouldn't be able to say that because trees can't talk. they don't have mouths. i would have to have the foresight to say 'i wish i was a toilet but if by chance i'm turned into a tree instead, i wish to be a tree with a mouth that can wish to be changed back into a human being.' because i'd only ever want to be a toilet or a tree for a very brief period of time... i guess this is the exact reason why they always say you should be very careful what you wish for.