This textbox turns any all ampersands, no matter what, into &s.
<This should be between angle brackets, and stay that way.> Watch how these get slowly eaten away with every submit in the second textbox, but don't in the first: &
"Posted" result:

This textbox doesn't do anything with ampersands. Watch how things get eaten!
<This should be between angle brackets, and stay that way.> Watch how these get slowly eaten away with every submit in the second textbox, but don't in the first: &
"Posted" result: