Tongue Twister

try to read it fast

a flea and a fly in a flue
said the fly "oh, what should we do?"
said the flea "let us fly"
said the fly "let us flee"
so they flew through a flaw in the flue
mike make marshmallows with marmalade and maybe even milks

if one doctor doctors another doctor,
does the doctor who doctors the doctor,
doctor the doctor the way the doctor he is doctoring doctors?
or does the doctor doctor the way the doctor doctors?