Why do some people make watches stop when they wear them?

My friend has this problem, also she says some electric machines won't work properly when she tries to operate them. She has problems when using a computer or printer as sometimes they work for a while then just stop or go haywire. She is not a stupid or awkward type of person and has been supervised by other... show more My friend has this problem, also she says some electric machines won't work properly when she tries to operate them. She has problems when using a computer or printer as sometimes they work for a while then just stop or go haywire. She is not a stupid or awkward type of person and has been supervised by other users.
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