No, don't do that, PattyLou. Read "You Really Dont";s post above yours. How would you like it if your number got spoofed, and someone who doesn't understand spoofing wrote your number on all those giveaway forms? You would be the innocent party getting harassed.
I suppose it is a great idea if you have no imagination and are easily amused. Do you actually think a scammer is bothered by someone pretending "...to be crazy and flipped out on them."? They have no reason to care in the least. This is a game the scammer wins.
They win one round by you answering the phone.
They win another round by knowing YOUR phone number is attached to a person who is willing to be a victim and ignorant enough to answer unknown calls and even engage in a conversation.
They score a third time by being able to pass this info to other scammers.
The Final Win for them is they will keep calling.
You only win if you like the calls and want more calls. You have done nothing useful for yourself or anyone else.