Well it was a little more complicated then that.
As we all know the shapeshifting robots of Metanica V
like to vacation on Earth as farm machinery,just to chase the cows up and down the pasture .
So the fellow from Metanica V had earlier been to
Alpha Centauri trying to sell the cyborgs over
there spare parts for their
implants.
After making the sale,Bob the Robitic salesman had come to Earth
as a csweet corn picking combine and his 4 heads up at the corn cob
pickup teeth had got scratch and some of Bobs robot oil,complete with his robotic dna,had got
onto the corn Trevor had eaten.
So first Trevor turned into a loookalike
of the cyborgs from Alpha Centauri.
Then he turned into a combine.
Soe put her hands to her mouth and said
"Oh my Gawwd" and her eyes widened as she saw Trevor suddenly flop on the floor on his hands and knees as his hands turned
into the big six foot diameter rubber drive wheels of a combine
and his feet turned into the three foot diameter rear wheels of a
4WD Black Knight combine.
Trevor began to scream in terror as he felt various pipes,pulleys and hydraulic pumps form inside
his expanding chest..
His screams were cut short as his big smokestack sized muffler forced its way out of his
mouth,his nose started stretching out into a cab
( complete with a waving farm hand gripping the steering wheel and Trevors big diesel engine started
sputtering to life.
Sue fled and the house collapsed and blew apart as Trevor expanded to his full combine size.
A little later on Sue's Uncle Jake ,a farmer
in need of a combine ,drove up
to the ruined house and the still roaring combine and whistled at the
big machine in appreciation.
As a human Trevor wasn't worth diddley-squat but
the combine,complete with its own farmhand
waving back to Uncle Jake
whilst chewing a plug of tobacco
had to be worth a cool half million easily.
Uncle Jake turned to a stunned Sue and asked her how much she wanted for the machine...