For the underwater part:
Use caustic patterns lighting effects. These are the bright and dark light patterns that you see at on the ocean floor or the bottom of the pool.
These are often generated in computer painting programs and could be projected on the actor or area with a projector tied to an appropriate computer rendering of an ocean bottom.
For the drowning part:
That is the skill of being an actor.
It depends on the circumstances.
You would be a hero if you see someone drowning in the water and are able to succeed in saving them. The first step to save someone from drowning is to get them out of the water or at least getting their head out of the water.
Someone can purchase White Lighting from a number of stores and online retailers. Such lighting can be found from The Home Depot, Lowe's, Amazon and eBay.
Yes, rustic lighting is old lighting. It can also be brand new lighting which was manufactured to look old.
yes
Hopefully you would do the right thing and do your best to save them.
Not really. Someone standing in a field with a metal rod will still get struck by lightning even if they are wearing rubber soles.
If you see someone drowning in the water and you are able to succeed in saving their life, you will probably be labeled a hero. Of course if they were trying to drown, they may not be happy that you saved them.
Because if you try to save the drowning person, you may need help or you may get into trouble and need to be saved too.
Superogatories as defined as "actions that are commendable, but not required." Examples of such actions are when a person risks their safety to save someone else's life, like someone who is drowning. Very commendable but not his or her duty to save the drowning person. There is no moral condemnation of the people who passed up the drowning person because of the weight of the value of their life and safety in their decision.
get struck by lighting
If you happen to fall into a body of water (or if someone throws you in) while you are asleep, then yes, you could wake up drowning. This doesn't happen very often.