Slowrolling vs Fake misclicks

[Anders]

What is the distinction between purposefully slowrolling someone, and taking a long time to hit call because you're playing 8 tables and several tough decisions came up at once? It seems like it isn't a bad thing to do unintentionally, if you're busy with other tables at the time, but if you do it intentionally it's suddenly on par with making fun of dead relatives? How can this be true, considering that from the opponents perspective, it looks the same either way?