This happens to everyone, I'm sure. No one's perfect.
Senioritis is kinda sorta setting in for me, so I've gotten a little forgetful about finding out the homework. Twice this school year I've walked into class and have been like "There was homework?" XD Both were in my Econ. class and the teacher actually rarely even looks at your homework, so I'm even more lazy on that. One of those 2 times, however, the teacher did actually collect it, but all I did was lose 10 points.
There have been other points in other grades where I would just completely forget about an assignment, or other times where I actually did forget a big project at home and had to call home to get it driven over. The teachers were cool with it, luckily. Being a good student is good because teachers are extremely chill with you if you screw up once.