If Spongebob and Patrick can talk with David Hasselhoff, then Sandy should be able to talk with Drizzt. Drizzt is a Lawful Good character according to the official Wizard of the Coast character sheet, it would be EXTREMELY out of character to kill an innocent creature. To top it all off Drizzt isn't above questioning authority, so I can see him walking away from the challenge. Sandy doesn't even need to do much convincing, Drizzt is just a wholesome guy like that.