Why did he do that ?...

Hello friends ,
The day before yesterday at 11 o'clock in the morning we saw some panzers & soldiers in front of our house . We knew that there is inspection , I arranged my room & kept repeating welcoming sentences with my self & then they left without checking our house .
Anyway , in the afternoon we were about to leave to visit a nearby relative house , but we saw the road closed by the American forces, we knew there is another inspection .
My mom opened the doors ,the family kept waiting, but this time I kept watching TV , & I was not sure that they will choose our house for inspection.
I was in the living room , when I heard the bell , & my father was talking with someone in English , I said FINALY .
They asked my Parents if we have gun & they were surprised when they knew that we don’t .. & surprised more when they saw me talking English fluently. . It was the first time I speak with some one in English.
My mother was a little bit uncomfortable in the beginning , but the soldiers were nice with us, except one ,he was rude, he crushed the TV remote control , squeezed a tube of gel on the ground & on the bed cover & sheets.
He also powdered two bottles of Baby powder on my mother clothes in side her closet & on the bed cover, that was unseemly deportment. He did that while he was searching my parents room alone.
The other soldiers didn’t break anything . however we were expecting the worst & more losses . .We heard that some houses were damaged , so we were afraid that could happen to us .
I believed that if we cooperate with them & welcome them, they will check our house with more graciousness.
Every time I hear people saying that the soldiers broke this & did that , I would say: come on they are targets all the time , they expect attacks in every minute , certainly they will be nervous.
But if they see a co-operative family they will be nice!!!!.
Give me a reason i am confused...
Sunshine...