Translation of shitty in Spanish

I will be visiting in Italy from April 10 to 15 in order to meet some old friends. I'd like you to attend a one-day course, maybe I can help you in learning something new. Please give it a try.
There might be another reason why the house was hit. Some houses have a little infrastructure problem and cannot protect themselves against flash lights. That means they are in constant risk of fire which can lead to catastrophic outcome.
I understand everything you write. It's all right. I've studied in school more than 50 years ago. I recommend the Augusta course. You pay a little more, but it is worth it in any case.