when to recall in lane?

I always get paranoid on recalling, ESPECIALLY mid, if I don't have teleport off cooldown and the minion wave is halfway through, the enemy can push and get a tower while I'm gone! I like having the jungler keep lane for me while I'm gone, but I'm afraid this might be rude even though I think the gold per second is higher in lane than in camps. So instead, I treat recalling like extremely long roaming, I shove the wave right before the tower tries to kill the minions and race back to lane while the enemy is roaming and ganking.
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