That first one looks like my girlfriend.
Except she does it for free nowadays. Thankyou, Market Forces :-)
You can't replace the default characters. One crap joke would get swapped for a worse one. Not without bloodshed anayway. Maybe Brad'll retire them when the 1 millionth "Sucky Sucky" Joke's been done.
I wish it were different but...
Please replace the handset, and try again.