He's trying to look cool for the cute screen next door. If she wasn't looking he's go for his favorite Spongebob band-aids.
"I had my double glazed window changed last month (water damage), but it wasn't installed right. Only 3 days later, a huge crack appeared. I immediately called the company that installed the window and they told me nothing could happen. But a new window will be installed soon. I don't trust huge cracks in my windows so duct tape to the rescue! I think it's kinda artsy!"
It DOES have a sort of abstract art quality to it. Keep it if you don't mind sacrificing the view!