I wouldn't dream of putting it down the toilet, I usually have a fair bit of used kitchen roll in my bin so if we ever (and its rare!) have any leftovers like that I just put it in my usual kitchen waste bin that's for stuff that can't be recycled (no pets here
) I have never had a leaky bin bag, even though I buy the cheapest ones I can find! That goes into our black bin, we have a green bin for recycling, glass, paper, card, plastic, metal cans. There is no food waste bin collection where I live. Shame, because as a child I remember the 'pig waste bin' we had to put out, it was like a small milk churn.