JM makes a good point.
A go-around or an engine out approach are great times for a DE to pull the
gear circuit breaker while you're occupied with other things.

One thing that our DE, and I as well, try to drive into every commercial and
or complex student is to keep your hand next to the gear handle until you
get the "gear up" or "gear down" indications. It will serve as a physical
reminder to turn your eyes back to the indicators before your hand is
returned to service. Some will say to leave it on the handle, but those
who've broken their gear handles off when hitting turbulence will tell you
to just put your hand "near" the handle.
Jim B