Whoa, comparing Bitcoin to a sewer rat is dangerous, because this is also true about a sewer rat :
~ They operate in the sewers in the dark
~ They eat any shit
~ They spread the plague
~ Nobody wants to touch it
He should rather have compared private ledgers to sewer rats... They like to operate in the dark {where you cannot see what they do} and they spread like the plague {fractional
reserve banking} and they as a group push every other animal out of their environment and fiercely protect their territory.