Can someone find true love with an inanimate object like a mannequin? Thomas Forrester sure thought so. When he stole a mannequin that closely resembled his ex-wife, Hope Spencer, nobody could've predicted how unsettling things would get. Being able to hear the mannequin speak should've been the first sign that something wasn't right with Thomas, but he ignored all the red flags (via Showbiz CheatSheet).  

Things quickly escalated between Thomas and the mannequin, and they formed a romantic relationship. In his mind, the best way to move on from Hope was to date a mannequin that looked eerily similar. It's one thing to talk to the mannequin; it's another thing to date it. But Thomas took it a step further and kissed the object, too (via Soaps.com).

Unfortunately for Thomas, per Soap Central, he was caught in the act by Hope and Liam Spencer (Scott Clifton) at different times. But this happened only after the mannequin urged Thomas to kill Hope's husband, Liam. 

Thankfully, Thomas wasn't actually insane but had a medical problem with his brain, which was quickly resolved. This conclusion was probably the right choice as this storyline wouldn't have sat right with fans if it had continued any further.