Phaha! So far it seems we will first trade the lower 2 and upper 2 somewhat later so there will not be such a hole in there, though it would be funny. I think it's a cool period in kids and parents lives. ^^
& lets hope that nothing will drop to zero. ;)
The funniest thing is how proud they are of having such a huge gap in their teeth! Showing everyone, and wobbling the loose teeth like crazy... crazy kids...