Answer: Forbidden thoughts, checking
Step-by-step explanation:
Forbidden thoughts are thoughts that are dreadful always pessimistic with the aim that something bad will happen which prompts you to check situation to avoid them from happening. Forbidden thoughts are Obsessive-Compulsive Disorder, they are also known as intrusive thoughts. This thoughts just pops up your head during the day activities and are usually disturbing, they are also built from anxiety or can lead to anxiety. Howie Mandel obsession was characterized by forbidden thoughts which lead him to checking rituals ensuring everything is safe.