The Los Angeles Times has reported that some of Kinkade's former colleagues, employees, and even collectors of his work say that he had a long history of cursing and heckling other artists and performers. The Times further reported that he openly groped a woman's breasts at a South Bend, Indiana sales event, and mentioned his proclivity for ritual territory marking through urination, once relieving himself on a Winnie the Pooh figure at the Disneyland Hotel in Anaheim while saying "This one's for you, Walt."[38][39] In a letter to licensed gallery owners acknowledging he may have behaved badly during a stressful time when he overindulged in food and drink, Kinkade said accounts of the alcohol-related incidents included "exaggerated, and in some cases outright fabricated personal accusations." The letter did not address any incident specifically.[39]
In 2006, John Dandois, Media Arts Group executive, recounted a story that on one occasion ("about six years ago") Kinkade became drunk at a Siegfried & Roy magic show in Las Vegas and began shouting "Codpiece! Codpiece!" at the performers. Eventually he was calmed by his mother.[38] Dandois also said of Kinkade, "Thom would be fine, he would be drinking, and then all of a sudden, you couldn't tell where the boundary was, and then he became very incoherent, and he would start cussing and doing a lot of weird stuff."[38] In June 2010, Kinkade was arrested in Carmel, California for driving while under the influence of alcohol. He was convicted.[40][41][8]