demophobic,androphobic
Trypanophobics.
Acrophobic
Lintophobic.
A person that is afraid of the dark has a nyctophobia
Sensible or a pyrophobic.
Depending on degree: either bully or sadist. Either is not someone you want to be around.
a snitch
a homosexual
Selfless
You call the person a bully, jerk, meanie,etc
I'm afraid not Nope new person :(
A person who does things for others may be an assistant or a helper.