No, I have not. What I have seen is that in Spain, "pan de perro" was mentioned in 1623
no I have not seen that. but it  is mentioned as early as 1623 in a play by Lope de Vega
My dog loves dog biscuits I think he is obsessed with them Nice. They tend to be dry and hard, does it like it this way? Oh no there are some that are soft and chewy, made my milk bone Cool, do you buy the ones sold in a flat bone-shape? No, but I have seen those. They even have some softy ones made from duck I have never heard of those, but I have heard that manufacturers claim dry and hard biscuits help clean the dog's teeth. Yeah there are some made specifically for that Have you ever heard of ''Dog's bread''? it is made out of bran. No but it sounds interesting. Have you seen the dog biscuits shaped like post men?
In Spain, ''pan de perro'' is mentioned as early as 1623 in a play by Lope de Vega.