Too many clicks to do simple things.
There are a few quests like this, but only one I can absolutely remember. Sometimes it's just pointless to stand in one place and have to click 3-6 times to make things work.
The storyline quest Druthers House Rules stands out. You pick up a bucket, walk 10 feet, then click the destination, click twice to select the bucket, click once to trade the bucket, click the destination to fill the bucket, and then click the destination to collect the bucket.
Why can I not click the destination to fill the bucket..? I appreciate that you're trying to increase immersion, but this one (and a few others) went a bit too far. :(