How not to make peanut brittle

So this is a hilarious story about my cooking. So I was using this recipe

Then I realize that I don't have any peanuts! So I substatute peanuts for almonds and I put sugar and brown sugar and Karo syrup into a plastic bowl. Then I put it into the microwave for 4 minutes. I did two things wrong. 1 I didn't stir the mixture. 2 candy gets really hot when it melts. I ended up melting the bowl then when I went to clean the remains of the bowl the candy was dissolved by the water so it went down the drain. Then it must have re-solidified in the drain because the drain then clogged.