I'm a bit behind on your thread (and everyone's- sorry!). Do you not want Gabe to help with stuff any more? I think if you can handle it and make sure he does it without expecting anything from you in kind you might as well let him mow the lawn- one less job for you to do!
If you really don't want him to do those things (I guess you've told him you don't?) maybe ask CG for a bit of help in exchange for lasagne or something? I'd love to see Gabe come round and see a cool guy mowing your lawn- that would be priceless!
