– Докторе, защо ми жълтеят зъбите?
– Есен е.
https://scontent-iad3-1.xx.fbcdn.net/v/t1.0-9/s720x720/122624508_3503999996309854_8961507164440413337_o.jpg?_nc_cat=104&ccb=2&_nc_sid=110474&_nc_ohc=CSwpYbdWsToAX9s0kNC&_nc_ht=scontent-iad3-1.xx&tp=7&oh=6901a51af3773c34a7572c7511c29a93&oe=5FBB2037