If you are not disciplined in your approach to steroids or to many other drugs that I sell you will get into trouble. Of great concern are those mixing steroids and amphetamines, or steroids, pseudo-amphetamines like phentermine, and benzos or buprenorphine. You are heading straight into the eye of the monster if you do that. It is idiocy. Testosterone alone, in reasonable dosages is not likely to lead to "roid rage" is most people. BUT if you have a temper already it is a different story. If you are just using it recreationally to improve your sex life but you are not doing a lot of physical activity it can be dangerous as well.
Drugs are tools and tools do work. A saw can cut wood or it can cut you. How you use it makes all the difference.
I couldn't resist.
YMMV with steroids. It's quite possible to rage out even on a moderate ramp up dose. Each body has it's unique tolerances. It's also quite easy to underestimate the effect steroids have on the twitch activity of the muscles. It is sooo easy to walk in to a gym and cause severe tears in muscles if you don't know what to expect.
Nothing like feeling a muscle rip apart, lol. A strange sensation and painless until awhile later. Massive swelling.
edit:
If you are concerned about keeping your hair (all of it), don't use steroids.
A little Propecia [finasteride] goes a long way toward preventing hair loss. Muscle tears are the result of irresponsible lifting, not steroids. LOL.