资料题：A hobby can hardy be（　）。

I have been trying to get sick.I don't wear a sweater when I should, and two days ago I walked in the rain without my boots, and my feet got soaked.But so far nothing has happened.Debbie once told me about a gin in her cabin at camp who hiked t stay overnight in the infirmary.She used to rub the end of the thermometer until it went up to 102 degrees.Then she' d stick it in her mouth and the muse would think she was really sick.This morning I tried doing that but it never went above 94 degrees and I rubbed it for ten minutes.So I held the tip of the thermometer next to the light bulb in my desk lamp and it went up to 105 degrees.I figured I'd put it in my mouth and walk downstairs like that.Then my mother would take it out and wouldn't she be surprised when she saw what a high fever I had!The only trouble was I didn't know the thermometer would be so hot.As soon as I put it into my mouth I burned my tongue! I spit the thermometer out.It fell an the floor but it didn't break.I will have to think up a better way to get my mother and father back together.I can't waste my time tying to get sick.