Verbs to do with cooking are often ergative:
bake
boil
cook
defrost
freeze
melt • roast
Example:
You should roast
the meat at 200 degrees.
The meat was roasting in a hot oven.
I always defrost
meat before I cook it.
I am waiting for
the meat to defrost.
Melt
the chocolate and pour it over the ice cream.
The chocolate was melting in a pan.
Verbs to do with vehicles are often ergative:
back
crash
drive
reverse
start
stop
run
sail • fly
Example:
I'm learning to fly a plane.
The plane flew at twice the speed of sound.
He crashed his car into a tree.
His car crashed into a tree.