It has been noted by a few Realtors lately that sometime during showings PRESCRIPTION DRUGS have gone missing.  Home owners are often cautioned about hiding  jewelry and small electronics, but recently a Waco Realtor noted that prescription drugs went missing after a showing.   The Waco theft is no isolated incident.  Reports have surfaced of a Dallas-area man visiting homes for sale in search of prescription medications.  Reports of similar thefts have been found across the country.  So now prescription drugs are added to the list of valuables to hide or remove from the property during showings.