hi Celia,
i always use Bcc when forwarding jokes and things to friends.
i always remove the excess e-mail addresses as well. yesterday i had an e-mail from an unknown person, i deleted it. i don't get that happening very often though.
it is a good way to protect your security on line. you can send batches of pictures like that too.
never put anything in the to line when using this system. your friends have already got your address and unless you remind them to remove it that will compromise your security if they pass it on.
rabbit b

PS please excuse one handed typing.