Bad
ambush - To suddenly attack someone after hiding and waiting for them:
The brigade walked quietly to the hidden spot on the hill, patiently until the enemy walked in the valley below, so that they could ambush the unsuspecting enemy, who were taken by surprise.
fairytale - A children's story about magical and imaginary beings and lands; or something that is too good to be true or seems unreal.
He told a fairytale about how he got the job, but no one believed him, and people suspected that he had a relative in management.