In the same year, members of People for the Ethical Treatment of Animals announced that they would distribute trading cards to children outside Manitoba schools as part of a national anti-milk campaign. The cards showed the unhealthy side effects which PETA members suggested were associated with milk, including an increased risk of cancer and heart disease. Caldwell refused to allow PETA members on school property, and announced that he would take "appropriate legal steps" if they "enticechildren into approaching [them for materials".