I wish people would stop offering services 'for life'. They so rarely turn out to be for life. Having to renege on a 'for life' promise only generates the worst

I wish people would stop offering services 'for life'. They so rarely turn out to be for life. Having to renege on a 'for life' promise only generates the worst kind of publicity: justifiably vocal former-customers (even worse: formerly-happy former-customers).