#negative_stimulus  a stimulus with undesirable consequences
  supertype:  stimulus__stimulation__stimulant__input  any stimulating information or event; acts to arouse action
  subtype:  bother__annoyance__nuisance__botheration__pain__pain_in_the_neck__pain_in_the_ass  something or someone that causes trouble; a source of unhappiness; "a bit of a bother"
     subtype:  irritant__thorn  something that causes irritation and annoyance; "he's a thorn in my flesh"
     subtype:  plague.bother  (informal) an annoyance; "those ants are a damn plague"
  subtype:  aversive_stimulus  any negative stimulus to which an organism will learn to make a response that avoids it
  subtype:  headache__concern__worry__vexation  something or someone that causes anxiety; a source of unhappiness; "New York traffic is a constant concern"; "it's a major worry"
     subtype:  bugaboo  a source of concern; "the old bugaboo of inflation still bothers them"
     subtype:  onus__burden__load__encumbrance  an onerous or difficult concern; "the burden of responsibility"; "that's a load off my mind"
        subtype:  dead_weight.onus__deadweight  an oppressive encumbrance
        subtype:  fardel  (archaic) a burden (figuratively in the form of a bundle)
        subtype:  imposition.onus  an uncalled-for burden; "he listened but resented the imposition"
     subtype:  business.headache  a rightful concern or responsibility; used in such phrases as "it's none of your business" or "mind your own business"
  subtype:  grief__sorrow  something that causes great unhappiness; "her death was a great grief to John"

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