1. Afraid of time. Scared to think of future changes and eventual death that awaits us all.
2. Afraid of chronic. Dad got high and hit mom when you were a kid, now the sight of chronic gives you the chills and makes you want to throw up in your mouth.
1. I took a sledgehammer to my clock because I'm chronophobic
2. I took a sledgehammer to some stoner at a party because I'm chronophobic.