为什么烟叶可以吓退蚂蟥，辣椒可以吓退哺乳动物，茄科植物是有啥魔法吗？" Mitchell was born in Alberta and grew up in Saskatchewan, but she had been residing in the U.S. for 3 a long time (and California for two) by 1970, so I don't know where by she picked up the expression "for free."But That could be altered in time