ball and things get exciting even though fetch is a difficult word for deaf kids to say. 4-year-old lucca says it's a lot more fun to pay fetch with nan than the pet snails she has at home. >> and snails need a really tiny bol and it might roll off their tongue. >> reporter: ers that not a problem for nan. while life can be confusing when you can't hear well, the kids' feeling for nan come through loud and clear. >> i love nan. >> i think she louisiana you, too loves you, too. >> no. >> reporter: you don't think so? >> yes. >> reporter: now that that's settled, john ramos, kpix 5. >> oh, what an incredible dog. >> awesome. >> the seed center operates primarily on donations. >> still thinking about the snail training for fetch. a donor picked up the cost for nan. they can always use help with ongoing expenses. we'll be right back. ,, ,, female narrator: through memorial day female narrator: through memorial day at sleep train, get 36 months interest-free financing plus big savings of up to $400 on beautyrest and posturpedic. even get three years interest-free financing on serta icomfort an