In Hammerly Oaks, Inc. v. Edwards, 958 S.W.2d 387, 392 (Tex. 1997), one issue was whether a leasing agent was sufficiently in charge of an apartment complex to be a vice principal of the owner. 958 S.W.2d at 392. The circumstantial evidence offered to prove the agent's standing was that she was alone in her office when the events in question occurred. That fact, we concluded, could not support an inference that she was a vice principal because it was just as likely that she was only a secretary or receptionist. The Court added: "A jury may not infer an ultimate fact from such evidence." Id.