A funny noise

Bernie was sitting dere helping my Gwand-ma do some counting work on de 'puter.
Me sits in de in tway and hold dem papers still.
Den Bernie hear a stwange noise.
It go Brrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr  brrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
But Bernie can't say dat so Bernie say Bwwwwwwwwwwwwwwwwwwwwwww  bwwwwwwwwwwww
Bernie look up and me look awound. It coming fwom Gwand-ma chair.
Dat vewy stwange.
Den Bernie notice a stwange smell.
OOOOOooh    yuk.
Sowwy, me go somewhere else for a little while.
See ya later Gwand-ma.
Luv fwom Bernie
PS Will somebody please open de window.