School mum has invited my son over to play. They own an XL bully. Apparently it’s a lovely dog and they have 3 kids at home. I really don’t want him to go, I just don’t think it’s worth the risk. Is it best to make up an excuse or just be honest? Interested to hear from owners of XL bullies how you would react to this. She’s a lovely lady and ideally I don’t want to piss her off.