lol eth returned from dao is after the fork only, it cannot exist on ethc chain this is the whole point to fork. eth/c left in dao is the hackers which was not carried over in the fork. all returned dao eth after fork there is no matching ethc.
Reality Check:
http://blocks.elaineou.com/addr/0xb136707642a4ea12fb4bae820f03d2562ebff487
http://blocks.elaineou.com/addr/0x84ef4b2357079cd7a7c69fd7a37cd0609a679106
http://blocks.elaineou.com/addr/0x807640a13483f8ac783c557fcdf27be11ea4ac7a
DAO address ETH Balance: 2 wei (less than $0.01)
https://etherscan.io/address/0xbb9bc244d798123fde783fcc1c72d3bb8c189413
DAO address ETHC Balance: 63.17
http://classic.aakilfernandes.com/#/address/bb9bc244d798123fde783fcc1c72d3bb8c189413