1: Ripping on the arts.
The arts are the butt of a lot of STEM jokes. It's the same joke over and over again, calling the arts useless and unnecessary. Although engineers are the ones who have the most stable lives after they finish their education, the arts majors are having the most fun when still in university, while engineers are dying.
2: Denying being a step below scientists
The interdisciplinary engineers are always quarrelling with the more pure scientists, namely physicists. The scientists are the ones who come up with the ideas, but the engineers are the ones who put it out into the real world. The reality is, engineering really is a step below science as far as difficulty goes. A scientist has to think hard whereas an engineer has to work hard. As much as they hate to admit it, scientists are the smarter ones.
3: Being a little cocky
The difficulty is one thing, but prestige is another. Engineering is often a capped major. Everywhere, engineering is consistently ranked as the most valuable major, by demand, salary, and general respect. Part of that might be society's undying praise of engineers. Sometimes the societal praise can get to your head... Okay, all the time.
4: Calling school their two full-time jobs
Attending classes where you blink and miss out on an important detail, and the 60 hours of studying for classes. The most stress comes from upper division "weed out" classes, which are designed to remove some students from the programme.
5: Spare time is study time
Mr Stark's skill might be astounding, being a childhood prodigy and scientific genius, but he likely acquired his study skills from his time at MIT when he was studying electrical engineering.
6: Club memberships, if any at all, are major oriented
While there are various student associations for culture, arts, sports, or leisure, engineers typically find themselves in the STEM groups, mainly those that will help them pass the glass.
7: Wanting/wearing a "Trust Me. I'm An Engineer" shirt
It's both hilarious and pretentious, and they'll wear it as a badge of pride on their tattered sleeves.
8: Dying from the workload
Engineering is said to have the biggest workload of any major. When a first year engineering major complains about the load, upperclassmen laugh, because it only gets worse with each year. Labs, lectures, discussions, and constant quizzes, exams, and multiple midterms per class. And that doesn't even count the sheer number and weight of assignments. The classes are hell, and the only reason anyone will get an A is because curves are godsends.
9: Their parents probably told them to study it.
Medicine and engineering are widely praised in everywhere, especially in communities with a large immigrant population. The stereotype does have some grounding in reality.
10: Bragging about how rich they'll be
Engineering pays well. In fact, chemical, electrical, and computer engineering are the most well paying majors with just a bachelor's degree. And with master's and PhDs, they hold some of the highest paid positions in the world, namely in the US and Asia.