The Chair is mindful that members do sometimes make personal comments. While some may regard them as in poor taste, I do not think that intervention by the Chair is required unless the comments are unparliamentary. I have not heard comments that under the rules appear to be unparliamentary. A matter of taste is a matter of taste and I leave members to exercise their own restraint.
In the House of Commons on February 10th, 1999. See this statement in context.