The are several possible dangers of self-hypnosis. For example, one could hypnotize oneself and not be in the position to change oneself back to the proper condition.
The possible dangers were thieves
you can burn yourself
I think the possible dangers in Nigeria are the amount of food they have and poverty also the world they live in!!!!
You could get injured and hurt yourself.
You could hurt yourself.
You could cut yourself with a knife. The ham could be contaminated. The bread could be molded. You could choke on the sandwich. You could drop the sandwich.
assuming
assuming
assuming
Heat and possible lack of water.
Possible fire is the only one I can think of.
Death