I have a lovely greyhound who is I think bombproof, but can think she is a puppy and get quite boisterous when people arrive and I knew DD was apprehensive about DGS1 never being alone with the dog so I took (and still take) the easiest way out and Grace goes to kennels when the DGC are here now. It is a shame but she doesn't seem to mind, life is easier with one less person (!) to worry about and I would hate the boys to be "spooke" by her as to them she is HUGE of course. I first got a dog when DD was 4 as she was afraid of dogs and she was brought up with a soppy bombproof labrador who as she lived until she was 16 was with us throughout all the time DD lived at home before going to university. Maybe a lab wold have been tolerated, I don't know, but I think things change when it is your own baby. Although greyhounds have very short hair, I still hoover like mad when the boys are coming, double check the lawn with a magnifying glass and take every precaution. Easiest all round