Shock

It is true that standing barefoot on a wet floor and touching 40 volts or higher can be deadly. If you are wearing dry shoes, that is better than being barefoot.

But if you touch one hand to a grounded surface, like a water faucet, a steel door frame, or a grounded appliance, and touch over 40 volts with the other hand, that is enough to electrocute you.

Any time over .01A passes through your chest, that is enough to electrocute you. This is true even though 0.01A is a pretty small current.

In class (not at home), we might let you feel .0005A from 120VAC, through two 100k resistors in series. You feel it in a finger joint, where your tissues are stretched thin around the joint.

You may know that when a person is being given defibrillation shock, the chest paddles have a salty gel on them. This is because a transient current must be passed through the heart to try to stop fibrillation, and the current needs to pass through the skin without burning the skin. Various body parts might be over 100 volts during the transient, which is enough to shock the EMS people. So they shout "Clear!" before they push the button.