title: pandas.read_csv with error_bad_lines=False seems to duplicates rows
body: <p>While importing a csv with </p>
  
  <pre><code>import pandas as pd
  test_df = pd.read_csv('test.csv',sep='\t') 
  </code></pre>
  
  <p>I encountered error 
  <em>Error tokenizing data. C error: Expected 2 fields in line 173840, saw 3</em> </p>
  
  <p>As suggested <a href="https://stackoverflow.com/questions/18039057/python-pandas-error-tokenizing-data">here</a> I applied </p>
  
  <pre><code>test_df = pd.read_csv('test.csv',sep='\t', error_bad_lines=False)
  </code></pre>
  
  <p>Instead of just skipping the problematic row, it seems that it started copying again from a random line (89465 in this case).</p>
  
  <p>Actual data in the original csv:</p>
  
  <p><img src="https://i.imgur.com/H3uG5su.png" alt="actual data"></p>
  
  <p>Data copied from the csv:</p>
  
  <p><img src="https://i.imgur.com/5cEhmUY.png" alt="weird error"></p>
  
  <p>Do you have any idea about why is this happening and what could I do to prevent it?</p>