Some guys make locks with angled keyholes. Always carry a bent lockpick. They will work good in these locks. I do, and I open lots of locks. Sometimes I carry copper lockpicks. Copper bends easy. That way I can bend it right there. Copper lockpicks break easy too. Be careful. Sometimes the locks have weird springs. They all spring differently, which makes picking it hard. I hold my torch close to the lock. This makes it hot. When it's hot, the springs are all the same. They don't bounce so differently any more. Be careful not to burn yourself.