Until he goes into your bedroom dresser when sensitive company is over (in-laws, the local reverend), and fetches one of your sex toys or fun underwear to amuse your guests with.
On the other hand, if your guest is a potential paramour, this could be a feature, not a bug.
Bad Fido! How embarrassing. Well…since the ol’ fella brought it out…it’d be a shame not to try it out, doncha think?