Q: Our son collects pennies and was dismayed to get home from school today and find that our new puppy, Lincoln, had knocked over his penny jar. Hundreds of pennies were scattered over his bedroom floor, but I am more concerned that Lincoln may have eaten some. Are ingested pennies dangerous?
A: Yes, for two reasons. Coins can block the gastrointestinal tract, especially in a small dog. If that happens, Lincoln may stop eating and start vomiting.