Here is an embarrassing story.
During high school, I once thought that I could microwave an avocado to ripen it. I know that was silly but I really wanted to eat the avocado. So, I placed into the microwave. After about 30 seconds, I took the avocado out and it was pure disaster. Not only did it smelled funky, it was still too hard to eat. My mom came into the kitchen and realized what happened and started to burst into laughter. Both of my sisters ran to the kitchen and we all laughed at the half-rock, half-rotten avocado.
If you guys ever run across the same situation. Here's a guide to help you tell when an avocado is ready. Don't eat unripe avocados because you can get diarrhea.