Added 3 minutes later
Once, I paid a bus driver 50 rubles like this: two ten-ruble bills and 30 rubles in small change, including a few two-ruble coins, a little more than one-ruble coins, and the rest in 50 and 10 kopeck coins, and even some five and one kopeck coins. The driver was incredibly surprised and looked at me with a funny expression. I had to make a great effort not to burst out laughing in his face. But when I sat down, I silently chuckled and kept remembering it and chuckling quietly throughout the ride.