Wow, that's so similar to our first setter. Must be different, since he wasn't a border collie...and he could go longer and harder. But a little while before he'd collapse we'd see his tongue going bluish from oxygen deprivation  So we'd stop right there and cool him off and call it a day. I never realized that border collies could get such a thing!
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"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."
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