There's an "industry" devoted to fighting the negative energy that surrounds Monday and the attitude that people have towards it.
Despite the thousands of quotes, messages and motivation to enter the new week in high spirits, Ugandans for the most part still frown upon the day. It is equal parts personal and shared with the rest of the world.
Hangover
The sour taste that Monday leaves on a Ugandan's tongue could actually be from a gallon of alcohol consumed over the weekend. Ugandans are party animals and will take any excuse or non at all, to have a beer and music.
So anything that does not enhance that 'vibe' is basically a Monday and everything it stands for. Which brings us to the next point.
Work
There are two factors to consider here. Monday comes with responsibilities from work to just appearing or being busy. For the unemployed, this feeling is amplified. On the other side, almost all work days are filled with partying even Monday. A comedy show, quiz, a theme night, all over towns. This makes the other activities almost unbearable. Moreover, for some people, partying is work.
Meetings
No other day is such a stark contrast to others like Monday. From hanging out with friends and family lost in conversation and jokes, to hanging in with colleagues lost in questions and plans. This is not personal, it is simply not prefered. Add in seeing colleagues one is not fond of.
Mindset
Ugandans have an almost combative attitude to Monday. It is also wide spread motivation and inspiration for Monday which exaggerates its dark cloud atmosphere. By Tuesday, most of this motivation and inspiration is forgotten because it has accomplished the biggest task, get everyone through Monday.
It is also embedded in the culture that is escalated and perpetuated by social media.