What Sneaks Within

Do we know what sneaks within
and comes to trick or treat?
Is it a child or man or beast
that comes knocking on your door.
Is it looking for an apple or a chocolate bar
Or maybe you might have within
a nice fruit roll or bale of hay.
Do we know what sneaks within
Is it man or beast
Is it friendly
Is it nice
A risk one takes
Opening the door on
Halloween.