
    Rene GARCIA and Adrienne Garcia, his wife, Appellants, v. MID-FLORIDA HAULING, INC., a corporation, and Wilson Sawyer, Appellee.
    No. FF-412.
    District Court of Appeal of Florida, First District.
    Oct. 24, 1977.
    John F. Roscow, III, of Scruggs, Carmichael, Long, Tomlinson, Roscow, Pridgeon, Helpling & Young, Gainesville, for appellants'.
    Toby S. Monaco, of Dell, Graham, Will-cox, Barber, Ryals & Henderson, Gaines-ville, for appellee.
   SMITH, Judge.

Appellants have not produced any agreement or shown any relationship between Mid-Florida and appellee Sawyer suggesting Mid-Florida would indemnify Sawyer for damages resulting from his negligent acts. Nor have appellants properly invoked the dangerous instrumentality doctrine. A trailer is not a dangerous instrumentality, and appellants have not shown Mid-Florida exercised ownership or dominion over the tractor.

AFFIRMED.

MILLS, Acting C. J., and ERVIN, J., concur.  