 Wonderful" in a 2006 casting video for "Dragon's Den", predating either show.Besides his blunt persona, O'Leary also gained a reputation on both shows for preferring deals in which he loans the entrepreneurs money in exchange for a percentage of future revenue, rather than taking a share of the company.Notable deals in which O'Leary has been involved on "Shark Tank" include investments in Talbott Teas (later bought by Jamba Juice) and GrooveBook (later bought by Shutterfly), the latter with Mark Cuban.