Not a ditloid but...

[struggling]

I am entering a quiz where I have to recognise phrases and sayings from just their initials. TMCSTB could be Too Many Cooks Spoil The Broth.

I have got most of them but am struggling with ARHNAABT. Any ideas?

[jonesy]

I put that into google to see what would came up but only found people asking what it was. sorry