Unfortunately, it's limited by how high you can count in your mind, while a bunch of 13 year olds are for the first time trying to learn how to play instruments next to you.
Self quoting is the key to sounding wise and all knowing.
'Hush, hush!' I whispered; 'people can have many cousins and of all sorts, Miss Cathy, without being any the worse for it; only they needn't keep their company, if they be disagreeable and bad. — Emily Bronte, Wuthering Heights