constraint

it's over six month i've been animate rollbots, and everythings going smooth as i predict. from layout team in a month and animate till now. i've learn many thing in this company, especially the people inside of it, there are many people has master in 3d.
back to topic (animate), so far, when i animate character, i have no big trouble, but when i faced characters that have constraint with other character, it make me frustated.. one of my weaknes when animate character is constraint.. fuck constraint.
i have to practice more.. argh.....