The constant threat of a high blood sugar level can cause hyperactivity and conversely, low blood sugar level will cause lethargy and eventually unconciousness.
This could even cause an infinite loop in some cases where updates continually place the updated record ahead of the scan performing the update operation.
Goods may cause problems beyond their value; for example, furniture may have not easily seen bedbugs, which may cause an infestation which is difficult and expensive to eradicate.