Why didn't i trip off of smoking salvia?

for the first time today me and a couple friends smoked some salvia. we smoked it out of a gl bowl. when it was my turn i inhaled deeply sucking in a couple times and help the smoke in like you should. i exhaled and the only thing that happened was everything was hilarious and things kind of started to vibrate and shake for a couple seconds and i sorta felt like my body was heavy and i was too heavy to stand up, the feeling was kinda vague though. everything i felt from the inhale was pretty vague. when i felt more normal i took another hit of the salvia and the only thing that happened was i felt like i was slightly high, like from smoking a little weed. afterwards when it wore off again i just got immensely angry and irritated for no apparent reason, when the anger finally went away i just had a deep sadness. i had no trip or hillusonations like the other 3 people i smoked with did. they all had intense trips. does anyone know why i didn't trip and was just left emotionally unstable for the rest of the day?