We just had to put one of our dogs (Lexus) down a couple of weeks ago at PFAH. A couple of days later they sent us a card with some very nice words and Lexus' paw print. It was very unexpected and most touching.
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They have been awesome.
Aw, sorry about your dog.
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And the paw print card - I'd have lost it over that! What a kind thing for them to do.