The lobster would be lunch food as well. I have only had this happen once but I though it worth mentioning anyway. While I do agree with Hara, the possibility does exist for eels to steal burrows. They will actually kill the fish living in it if it does not evacuate in time. My SFE literally ripped a sleeper goby in half, never ate it, just stole the burrow. 8O
Cheers
Steve