Plagiarism, the practice of taking someone else’s work or ideas and passing them off as one’s own, and its ancillary self-plagiarism, in which individuals republish work that they have already published, represent significant challenges to scientific journals. Authors have a right to be acknowledged as the source of their own work, and new authors must present their work in their own words.That's not our Bill Day, the cartoonist, rather Bill Day the editor of Biosystems Engineering speaking about a plagiarism controversy in scientific journals. Perhaps the cartoonist Bill Day can allow himself to absorb some of the other Bill Day's wisdom. Cartoonists are sometimes loathe to publicize anything that shines a negative light on our dwindling field. But if we want negative stories to stop, we have to stop supporting people we know are doing terribly unethical work. The fault resides first and foremost with the artist, but syndicates and editors who hold up this kind of work are also to blame. There's no reason Daryl Cagle should be putting forth Bill Day as a cartoonist to "save" with internet donations when he can't meet a minimum level of professionalism. I'll even say this about my own syndicate, Universal Uclick, who continues to syndicate Jeff Stahler's work after he lost his job for plagiarizing recently after multiple instances dogged him for years. They should stop. During my years criticizing lazy and unethical cartooning habits, I compiled a number of examples that, for whatever reason, other cartoonists weren't willing to publish or even forward in an email. They would send them to me and I tried unsuccessfully for over a year to get someone more prominent than myself to publish them, as I have lots of other things to attend to than being the poster boy for speaking out about these kind of lapses. But many of my peers won't so much as link to a plagiarism story when it's published, content to merely complain privately over beers about people who in some cases survived their entire careers while blatantly swiping the work of others. The result is that many cartoonists haven't even had to so much as publicly explain why their cartoons look so awfully similar to something else, and many editors are unaware it even happens. I made a decision yesterday to publish these myself on Twitter because to hold on to them any longer would feel like I'm actively covering for some of these guys. I discovered none of these myself, having received them all from other cartoonists and editors, sometimes anonymously. You can decide for yourself what you think. But here they are. I'm done hanging on to them. Here is another example of Jeff Stahler straight up tracing and flipping a Mike Lester drawing. It was never published around the time of his most recent plagiarism scandal and was sent to me by an anonymous syndicate editor fed up with seeing his rampant stealing. Here is another example of Bill Schorr swiping from MacNelly closely enough that it appears traced. Finally, here is Pulitzer Prize winner Jim Borgman with some cartoons that look so similar to MacNelly's that they are clearly swiped. Why swipe when you can draw well on your own? No clue. I'm told he was confronted by some cartoonists regarding the similarity and even came up with an excuse – but not publicly of course. Nothing has been written about it until now and I don't think his editors were even made aware of the charges. Again, I post these because I can't hang on to them any longer without feeling dirty. Too much of this debate takes place behind a giant wall hidden from editors and the public. Talking about all this in the open? That's an idea more cartoonists should copy.