to be unreasonably unsafe due to the proximity of the canal on adjacent property. See Geise, 84 Wn.2d 866. In view of the circumstances of this case which differ significantly from those found in Degel, we believe the trial court correctly concluded Angeles Park did not owe a legally imposed duty to invitee, Devin McMann. 3. Assumed Duty Issue. The McManns contend that Angeles Park voluntarily assumed a duty to advise its tenants when the canal would be full or empty by posting a notice announcing that the canal would be empty on October 15, 1992. The assumed duty doctrine requires one who undertakes a duty to warn to exercise reasonable care when doing so. Brown v. MacPherson’s, Inc., 86 Wn.2d 293, 300-01, 545 P.2d 13 (1975); Sado v. Spokane, 22 Wn. App. 298, 301, 588 P.2d 1231 (<HOLDING>), review denied, 92 Wn.2d 1005 (1979). Angeles
holding that misrepresentations relating to the breaching partys performance of a contract do not give rise to an independent cause of action in tort recognizing that fiduciary liability requires not onlya repose of trust but an assumption of a duty and breach of that duty holding inter alia that a voluntary amendment may give rise to prosecution history estoppel holding the voluntary assumption of a duty will give rise to liability if the performance is not done with reasonable care holding that puffing does not give rise to fraud liability under mississippi law