How much should it cost to replace the pipe that drains from the toilet?
Push ups work for your upper body and arms, For your triceps use a chair behind you to rest you palms, and slide. Do at least 30 reps (depending in ability). As you develop your muscles move to bicep curls and tricep pull downs
False alarms can happen, but VERY seldom does that occur. I recall one such incident during my entire undergraduate college time. The problem is that a true fire can happen, and college students tend to consider those alarms to be false. Personally, I think you're worrying far too much about this issue!
