At Time 11 this light was inadvertently not switched on.
During the discussion, Oliver happens to be waiting on them, and inadvertently switches the map for the love note that he was carrying.
The Doctor has inadvertently switched them all off.
When that happens, the gene hit by the virus can be inadvertently switched on or off, contributing to unexpected effects like cancer.
Desperate to save their parents marriage, the two cast a spell which inadvertently switches their parents' bodies.
Garfield inadvertently switches places with Prince, a royal cat who has just inherited a castle.
First, Franz's lorry is inadvertently switched for a stolen one, then a hitchhiker causes problems.
In the process of seeking the map light, he inadvertently switched on the dome light overhead, blinding his wife as she drove.
Close examination found that it shows an encounter with a sea turtle, who mistook the camera for a meal and inadvertently switched it on.
Fortunately for Billy, while comparing the guns, he had inadvertently switched one of Doc's for his.