That's Harry Gensler, in Formal Ethics, p.36. He then offers an amusing dialogue between two Hegelians:
A: Are you still a follower of Hegel?
B: Of course! I believe everything he wrote. Since he denied the law of noncontradiction, I deny this too. On my view, P is entirely compatible with not-P.
A: I'm a fan of Hegel myself. But he didn't deny the law of noncontradiction! You read the wrong commentators!
B: You're wrong, he did deny this! Let me get my copy of The Science of Logic.
A: Don't get so upset! You said that he did deny the law, and I said that he didn't. Aren't these compatible on your view? After all, you think that P is compatible with not-P.
B: Yes, I guess they're compatible.
A: No they aren't!
B: Yes they are!
A: Don't get so upset! You said that they are compatible, and I said that they aren't. Aren't these two compatible on your view? Recall that you think that P is compatible with not-P.
B: Yes, I guess they're compatible. I'm getting confused.
A: And you're also not getting confused, right?