An error in logic

Come Sunday evening, I couldn't help but notice that Gail had been home for the best part of two days, and had completely unpacked her bicycle panniers, which disgorged a number of much worn merino wool tops and sundry alarming glow-in-the-dark outer garments, plus allen keys, spare inner tubes, maps and suchlike, but not a single item that could reasonably be described as a special present for one's favourite and much missed wire-haired fox terrier.

Then I heard her saying this to a friend on the phone. "Oh but it's pointless buying presents for dogs, don't you think? I've better things to do on holiday than go shopping. And besides, I've devoted almost the entire weekend to spending quality time with Bertie. I took him for a long walk in Kirkhill Forest this afternoon, despite the sleet, and afterwards let him cuddle up on my lap, still damp from his post-walk bath, and helped him catch up with all his blog pals, including the much anticipated new PON pups Bob and Sophie."

You know I thought my owner was a highly qualified scientist, supposedly skilled in logical reasoning.

So how come she couldn't work out that buying treats for one's pet and spending quality time with him are not mutually exclusive activities.....?