firstly I believe I mention in the first sentence 'my own argument' and I don't actually refer to 'anything' or 'anyone.'
Secondly, since 'taurus excreta' is grammatically wrong (it should be "excreta tauri") and there is no Latin word 'excreta' (meaning 'faeces'), it must be 'merda tauri.'
so translated -
1. Let the buyer beware
2. Bullsh*t (rubbish) defeats the brains
Whichever translation neither seems appropriate.