It is a well known statistic that heavy usage of tables results in psychopaths knocking upon your front door. The correlation is even stronger with the backdoor or bathroom window.
There are only two great risk factors that need to be avoided. They are as follows.
Using tables for website layouts. This is the highest risk factor in using tables; it attracts the most homicidal and unstable psychopaths. If you value your life, use CSS instead.
Using a single column or row in a table to display data. This is wasteful; the conservationist psychopaths have great problems with waste. They may not be many in number but they are just as, if not more, dangerous as the other psychopaths. Instead use lists.
Using spreadsheets are negligible in risk factor. As is using tables for data requiring more than four boxes to display data. As long as the number of columns or rows are singular.
Hopefully this is an informative entry on the risk factors of tables and safe practices that help reduce the risk. Remember the only 100-percent risk free activity is absenence.