Just had to share this..
I'm home alone with Ds1 and DS2 tonight h e just had dinner, DS2 is in bed and was just about to put DS2 in the bath and the smoke alarm went off. Went out checked the stove was off, yep nothing burning there. Stood with the broom trying to turn oft he smoke alarm wondering why it went off. I the. Looked at our gas heater. There was smoke coming from it because DS1 had pushed the wooden coffee table (yes we probably are a little bogan) up against the heater and it was burning!!!
So scary! Thank goodness we had a smoke alarm (oh and that it isn't wake up DS2)