I actually quite long like dogs, unfortunately I am allergic to them, and cars and rabbits, guinea pigs etc, anything furry it seems...
My children have been taught that they must never approach or touch a dog without the owners permission, so I expect dog owners to afford me the same courtesy, ie don't let your dog jump, paw at me or slobber all over me and my children.
Thank fully most dog owners are responsible but I have been unlucky enough to meet a few that are not, the one that let her dog run over and eat our picnic and slobber over the food and terrify two toddlers, whilst saying 'he just wants to play' or the ones that jumped all over ds2 and ds4 terrifying them, given they were great Danes and bigger than the children... Again they were 'just trying to play' or 'being friendly' and 'they wouldn't hurt a fly'....
If I go to someone home I don't expect them to remove their pet from the room (tho my friends do as they know how allergic I am) but I don't want the pet jumping/slobbering on me, just as I won't allow my children to jump and slobber on people.
Oh and I absolutely do not allow dogs in my house, because I AM ALLERGIC!!! This apparently makes me mean (rolls eyes)
Thankfully most pet owners are considerate, thast doesn't stop the inconsiderate ones being any less annoying tho.