Hi everyone, I've just done a reading exercise and the verb 'intrude' is in the text. Here are a few lines from the text to provide context: - Apparently, we walk around in a sort of invisible bubble which is egg-shaped -- this is because we allow people to come closer from in front than from behind each other. In northern Europe and North America (lovers, close friends, and wrestling partners aside) the average depth of the bubble is about a metre. When it's intruded on the physiological responses can range from... According to the dictionary intrude means enter uninvited and intrude on interrupt uninvited. My question is obvious, I believe, do I have to use the preposition 'on'? I'm about to complain about English and its too many nuances but, what's the use? 🤪 Thanks in advance folks! Cheers 🥂