This is one of the most strange behaviours in ruby: if a variable
doesn't exist, assigning to itself will return `nil`.
So a line like:
mdmkdfm = ooops if mdmkdfm.respond_to?(:uiqpior)
Surprisingly will not raise any errors: the nonexistent `mdmkdfm`
variable will be evaluated to `nil`, `mdmkdfm.respond_to?(:uiqpior)`
will evaluate to `nil.respond_to?(:uiqpior)`, which will return `false`,
and then the line will be evaluated as `mdmkdfm = ooops if false`, which
will return `nil`.
Maybe in the future Ruby will change this behaviour. We hope CONSUL is
now in better shape if that ever happens :).
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