I haven't got a speech problem, Mum has a hearing problem

I was in my toyshop today (will post photo soon). I was washing up and asked Mummy, "Ah watt to dye ny has wif a tow."
Mummy: "You want to buy a house with a cow?"
Me: "Nono. Ah watt to dye ny hans wif a towl."
Mummy: "Oh, you want to dry your hands with a towel. OK, hold on, I'll get you one." And she ran upstairs. Honestly, wasn't I clear the first time? I mean, parents don't geddit. She's soooo deaf.