How come I become interested in repairs

 Well because I bike and many appliances lie idle because:   1.  no one is available to repair, 2.  repair

costs too much.  That is my complaint too with mechanics.  Sometimes all that they do is to tighten or loosen a screw or nut.  And they charge you so much.

It is a hassle to bring the bike to the bike, and argue and sometimes spit your bile out over a lousy repair

Sometimes the mechanic do not know what to do.   

If they sense  you do not know, unless the mechanic is close to you or your friend, you are a prey.