Devils advocate: retiring an old service dog means you’d need to invest in training another pup which is way more expensive than titanium teeth and dealing even with animal cruelty complaints and/or lawsuits. Also “bleed blue” fanboys will see this as badass, so its free PR.
As a mortal/moral person advocate: WHAT THE FUCK IS WRONG WITH YOU.
Money saved on k9’s is money for some super ugly Oakley’s dude
/s