I remember discovering that pasting a specific emoji to Google Slides causes the slide to become "poison". You could not view or edit it, the web UI would crash

I remember discovering that pasting a specific emoji to Google Slides causes the slide to become "poison". You could not view or edit it, the web UI would crash if you clicked on the slide. I discovered this by accident, but did not think much of it as I was able to work around by deleting the slide from the document overview.